Can someone tell me if this is right

Can Someone Tell Me If This Is Right

Answers

Answer 1

No you have to right

2:1

4:2

6:3

8:4

These are correct


Related Questions

David has $15 to spend at the gourmet candy store. He wants to buy gummy bears and jelly beans. Gummy bears are $5.25 per pound and jelly beans are $3.90 per pound. If David already has `1\frac{3}{4}` pounds of jelly beans, how many pounds of gummy bears can he buy?

Answers

Answer:

he can get 1224 gummy bears

Step-by-step explanation:

i 324 need 22432 po1n72

At a large high school, 15% of the students drive to school. Of the students that drive to school, 80% are seniors. What is the probability a randomly selected

student drives to school and is a senior?

O 0.19

O 0.65

O 0.95

O 0.12

Answers

Answer:

0.12

Step-by-step explanation:

Probability is defined as the number of possible outcomes divided by the total outcome.

Given that 15% of the students drive to school and of  the students that drive to school, 80% are seniors then the probability a randomly selected  student drives to school and is a senior P(D&S)

= 15% * 80%

= 15/100 * 80/100

= 0.12

The 4th option

This question is based on the concept of probability. Therefore the correct option is (D), that is 0.12 is the probability a randomly selected  student drives to school and is a senior.

Given:

At a large high school, 15% of the students drive to school. Of the students that drive to school, 80% are seniors.

We have to calculated the probability a randomly selected  student drives to school and is a senior.

By the definition of probability,

Probability is  branch of mathematics, and it is defined as the number of possible outcomes divided by the total outcome.

Given that, 15% of the students drive to school and of  the students that drive to school, 80% are seniors.

Hence, the probability a randomly selected student drives to school and is a senior is ,

[tex]=\dfrac{15}{100} \times \dfrac{80}{100}\\\\= 0.15 \times 0.8\\\\= 0.12[/tex]

Therefore, the correct option is (D), that is 0.12 is the probability a randomly selected  student drives to school and is a senior.

For more details, prefer this link:

https://brainly.com/question/11234923

1. Evaluate 65 – 3×[(28 - 8) + (24 + 6)]. Answer:​

Answers

Answer:

-85

Step-by-step explanation:

A household item uses 321 watts of electricity. This item is used for 27 hours each week. How much CO2 will be produced each week from this item?

Answers

This question is incomplete, the complete question is;

A household item uses 321 watts of electricity. This item is used for 27 hours each week. How much CO2 will be produced each week from this item?  (assume 1.37 pounds of CO2 is produced per KWH of electricity used)

Answer: 11.87 lbs of CO2 will be produced each week from this item

Step-by-step explanation:

Given that;

Average wattage Wattage of the item = 321 watts

Time used = 27 hours each week

CO2 produced each week = ?

so;

Total electricity consume = 321 × 27 = 8667 watt = 8.667 kWh

given that; 1.37 pounds of CO2 is produced per KWH of electricity used

hence; CO2 generated by our item will be;

⇒ 8.667 kWh × 1.37

= 11.87 lbs

Therefore,  11.87 lbs of CO2 will be produced each week from this item

Determine each number by writing a proportion. Round to the nearest tenth if necessary.

What is 5% of 40?

Answers

Answer:

2

Step-by-step explanation:

Write the proportion. You do 40x5=200. 200/100=2.

you would solve it by doing x/40=5/100 solve the equation and you should get the answer

hope this helped

Jefferson is plotting the vertices of an isosceles triangle on a coordinate graph. He has plotted the two points shown. Where would he plot the three point?

Answers

Answer:

4,2

Step-by-step explanation:

Answer:

It is 4, 2

Step-by-step explanation:

Trust me

X/3 - 6 > -12 I need help!

Answers

Answer:

x > -18

Step-by-step explanation:

If x was -18, -18/3 is -6 and -6-6 is -12. So, x must be greater than -18.

Answer:

x>-18

Step-by-step explanation:

Inequality answers are same as algebra but we use < or > for more than or less than and with line under for equal to.

x/3 -6 >-12

x/3 > -12 +6

x/3 > -6

x>-6 x 3

x> -18

Write the ratio of the first measurement to the second measurement. Compare in millimeters. Diameter of ball A:33 mm. Diameter of ball B: 5.4 cm

Answers

Answer:

the ratio of the first measurement to the second measurement is 11 / 18 or 11 : 18

Step-by-step explanation:

Given that;

diameter measurement of ball A = 33 mm

diameter measurement of ball B = 5.4 cm

Now, we convert the unit of measurement of ball B from centimeter to millimeter

we know that 1 cm = 10 mm

so 5.4 cm = x mm

x mm = 5.4 × 10 = 54 mm

therefore, diameter measurement of ball B is 54 mm.

Now, the ratio of the first measurement to the second measurement will be;

⇒ 33 / 54

we simplify the fraction

11 / 18 or 11 : 18

Therefore, the ratio of the first measurement to the second measurement is 11 / 18 or 11 : 18

15 quarters to 3 dollars

Answers

Answer:

so, it's 3.75 to 3

Step-by-step explanation:

15 quarters is 3 dollars and 3 quarters

Kyra needs to buy 6 pens and some colored pencils for school. He has $25.00 to spend. If the pens cost $3.50 each, how much does he have left to spend on colored pencils?​

Answers

Answer:

$21.50

Step-by-step explanation:

$25.00

- 3.50

-----------

$21.50

Answer:

4 dollars

Step-by-step explanation:

3.50 x 6 is 21 Dollars leaving Kyra with 4 dollars for color pencils

14. At the library, Herb spent 1/6 hour looking for a book, 1/4 hour reading, and 1/2 hour doing research on the computer. How many
hours did Herb spend at the library?

Answers

herb spent 55 minutes at the library

Find the quotient of 2 1/2 divide 5/8

Answers

it’s 4!!!!!!!!!!!!!!!!!!

Is this a function ?

Answers

no it’s not, hope that helped

help help help help

Answers

Answer:

I wanna say the first is direct and the second is partial.


HELP PLSSSSS!!!
Find y to the nearest hundredths place.

A
11.59 ft
B
12.43 ft
С
15.85 ft
D
24.93 ft

Answers

Answer:

d the its simpel

Step-by-step explanation:

If six is subtracted from three times a number, the difference is twice the number. What is the number?

Answers

Answer:

Step-by-step explanation:

Let the number be x.

3x - 6 = 2x

x - 6 = 0

x = 6

A frame designer is making a triangular frame. She has two sides of length 18 inches and 27 inches. What are the possible lengths (in whole inches) for the third side?

Answers

Answer:

Therefore, the possible lengths (in whole inches) for the third side is

9 inches < x < 45 inches

Step-by-step explanation:

For the above question, we have a rule, the sum of the length of any two sides of the triangle must be greater than the length of the third side.

Hence:

She has two sides of length 18 inches and 27 inches

Let the third side = x

Hence:

a) 18 + 27 > x

45 > x

b) 18 + x > 27

x > 27 - 18

x > 9

Therefore, the possible lengths (in whole inches) for the third side is

9 inches < x < 45 inches

Which is the better buy? Option A costs 5.00 for 10 pieces of candy and option B costs $10.00 for 10 pieces of candy.​

Answers

Answer:

Option A

:)))))))))))))))))))))))

Option A because it costs $.50 per piece while option B costs $1 per piece.



—————————————————————

See the attachment for the problem

Answers

Answer:

A) No solution.

B) -2, 1, 2

C) 2, 1, - 2

D) Infinite number of solutions

Step-by-step explanation:

A) 2x + 5y - z = -2

3x - 2y + z = 4

-x + 7y - 2z = 2

Let's add eq(1) and eq(2) to eliminate z.

2x + 3x + 5y - 2y - z + z = -2 + 4

5x + 3y = 2 - - - (eq 4)

Let's multiply eq(2) by 2 and add to eq(3) to eliminate z.

6x - x - 4y + 7y + 2z - 2z = 8 + 2

5x + 3y = 6 - - -(eq 5)

Subtracting eq(4) from eq(5) gives;

0 = 4

This is inconsistent and thus the system of equation has no solution.

B) 4x + 5y + 3z = 3

-3x + 4y - z = 8

5x + 3y + 2z = -3

Multiply eq 2 by 3 and add to eq 1 to eliminate z;

4x - 9x + 5y + 12y + 3z - 3z = 3 + 24

-5x + 17y = 27 - - - (eq 4)

Multiply eq 2 by 2 and add to eq 3 to eliminate z;

5x - 6x + 3y + 8y + 2z - 2z = -3 + 16

-x + 11y = 13 - - - (eq 5)

Multiply eq (5) by -5 and add to eq 4 to get;

17y - 55y = 27 - 65

-38y = - 38

y = 1

Putting 1 for y in eq 5 gives; x = -2

Putting x = - 2 and y = 1 in eq 1 gives;

z = 2

C) 4x - 3y + 2z = 1

-2x + 3y - 2z = 3

2x - 3y + 3z = -5

Solving this equation simultaneously via a calculator gives;

x = 2, y = 1, z = - 2

D) 2x + 3y - z = -2

x - 9y + 2z = 8

-x - 12y + 3z = 10

Add eq(2) to eq (3) to get;

-21y + 5z = 18 - - - (eq 4)

Multiply eq 2 by 2 and add to eq 3 to get;

-30y + 7z = 26 - - - (eq 5)

From eq 4, z = (18 + 21y)/5

Put this in eq 5 to get;

-30y + 7(18 + 21y)/5 = 26

-30y + 126/5 + 147y/5 = 26

Solving this leads to infinite number of solutions

In the equation below, a and b are constants. If a = b, what is the value of x in terms 2^z/a and 8^y/b

Answers

Answer:

Hi how are you doing today

If f(x) is an exponential function where f(2.5)=26 and f(6.5)=81, then find the value of f(12), to the nearest hundredth.

Answers

Given:

f(x) is an exponential function.

[tex]f(2.5)=26[/tex]

[tex]f(6.5)=81[/tex]

To find:

The value of f(12), to the nearest hundredth.

Solution:

The general exponential function is

[tex]f(x)=ab^x[/tex]

For, x=2.5,

[tex]f(2.5)=ab^{2.5}[/tex]

[tex]26=ab^{2.5}[/tex]          ...(i)

For, x=6.5,

[tex]f(6.5)=ab^{6.5}[/tex]

[tex]81=ab^{6.5}[/tex]          ...(ii)

Divide (ii) by (i).

[tex]\dfrac{81}{26}=\dfrac{ab^{6.5}}{ab^{2.5}}[/tex]

[tex]\dfrac{81}{26}=b^4[/tex]

Taking 4th root on both sides, we get

[tex]\sqrt[4]{\dfrac{81}{26}}=b[/tex]

[tex]b\approx 1.32855[/tex]

Putting b=1.32855 in (i), we get

[tex]26=a(1.32855)^{2.5}[/tex]

[tex]26=a(2.03444)[/tex]

[tex]\dfrac{26}{2.03444}=a[/tex]

[tex]a\approx 12.7799[/tex]

Now, the required function is

[tex]f(x)=12.7799(1.32855)^x[/tex]

Putting x=12, we get

[tex]f(12)=12.7799(1.32855)^{12}[/tex]

[tex]f(12)=386.4224[/tex]

[tex]f(12)\approx 386.422[/tex]

Therefore, the value of f(12) is 386.422.

There are 75 pieces of candy in a 15 oz bag.how many pieces are there per ounce?

Answers

Answer:

0.5

Step-by-step explanation:

In 1 ounce there are 5 piece of Candy.

What is Unitary Method?

The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.

For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.

12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.

As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.

This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.

Given:

There are 75 pieces of candy in a 15 oz bag.

So, Per ounce the amount of candy

= 75/ 15

= 5

Hence, In 1 ounce there are 5 piece of Candy.

Learn more about unitary Method here:

https://brainly.com/question/22056199

#SPJ2

Fill in the missing numbers to find two equivalent fractions 4/5 please help !!

Answers

first fill in the blank box is 2 second is 8 third is 80

what is 1,300 divided by85

Answers

15.2941176471 I used a calculator for this

Answer: 15

Step-by-step explanation:  

                  260

Simplify  ———

                   17  

Final result :

   260            

 ——— = 15

     17            

300th tenths equals to how many hundreds it is true
Rowdy will be sent to coca so ​

Answers

Answer:

3,000.

Step-by-step explanation:

In order to know the number that equals 300th tenths, the given number has to be multiplied by ten. Therefore, the following calculation has to be done:

300 x 10 = X

3,000 = X

As can be seen, the multiplication of 300 by 10 gives as a result the number three thousand. Therefore, the number that equals 300th tenths is 3,000.

Last year, 63 new houses were built in a neighborhood. So far this year, 6/7 of them have been sold. How many new houses have been sold this year?

Answers

Answer:

54 houses has been sold this year

Step-by-step explanation:

So 6/7 OF the houses sold

63 houses in total

So you just multiply

63*6/7=54

Find the value of x

Answers

Answer:

67.5

Step-by-step explanation:

Sum of Interior Angles of Pentagon = 540 (5-2) × 180

148 + 112 + 10 + 2x + 2x = 540

270 + 4x = 540

4x = 540 - 270

4x = 270

x = 270/4

x = 67.5

Please Mark Brainliest!

Help please ! !!!!!!!!!

Answers

try a it should be perpendicular from y=5x+3, creating an intersection

Plz I will give brainliest

Answers

Answer:

1/10

Step-by-step explanation:

Try it if I’m right pls brainleist

Answer:

2/0.8

Step-by-step explanation:

i divided

Which expression is equivalent to 1/4 - 3/4 x?

Answers

Answer:

1/4 (1 - 3 x)

Step-by-step explanation:

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