Mathematics High School

THIS IS TIMED!!
Which are equations? Select all that apply.

12 = three-fourths x

3.1 + x – 9

x – 4.8 = 9

One-half x minus 2 x + 3

x – 3.1x = 14.7 + 12

Answers

Answer 1

Answer:

A,C,E

Step-by-step explanation:

i just answered it on edg

Answer 2

Answer:

A)12 = three-fourths x

C)  x – 4.8 = 9

E)  x – 3.1x = 14.7 + 12

Step-by-step explanation:

o(*°▽°*)o

Related Questions

find the vertex y= 4x*2 -16x+10

Answers

Answer:

I hope it helps U

Step-by-step explanation:

As given quadratic equation is ,

y= 4x*2 -16x+10

As general quadratic equation is,

y=ax^2+bx+c   , we get  a=4 , b=-16 , c=10

as a=4 and +ive so the parabola is up-down facing

vertex formula is    X(vertex)= -b/2a    putt values in this formula we will get x -coordinate of vertex,

X(vertex)= -(-16)/2*4

X(vertex)= 2

Now to find the Y- Co-ordinate just plug in the value of X in the given equation, hence

Y(vertex)=4(2)^2-16*2+10

Y(vertex)=-6

hence the vertex of given equation is (2,-6)

   

A basketball has a diameter of 10 in. Using = 3.14, what is the approximate volume of the basketball in cubic inches?

Answers

Answer:

523.3 cubic inches

Step-by-step explanation:

A basketball has a diameter of 10 in. Using = 3.14, what is the approximate volume of the basketball in cubic inches?

The shape of a basketball is spherical.

Hence:

The volume of a basketball = 4/3 × π × r³

From the question,

π = 3.14

r = radius = Diameter/2

r = 10 in/2 = 5 in

Hence:

The volume of the basketball

= 4/3 × 3.14 × 5³

= 1570 ÷ 3

= 523.33333333 cubic inches

Therefore, the approximate volume of the basketball = 523.3 cubic inches

Lola's age is 14 more than 6 times Juan's age. The sum of their ages is 35. How old is each?

Answers

35 - 14 = 21

3 * 6 = 18

3.5 * 6 = 21

Thus Juan is around the age of 3.5 and Lola is 31.5 I believe

Im not quite sure however I think this is the answer, I hope it helps ^-^

PLZZ HELP I will give Brain thingy

Answers

I just need to answer two questions
it’s the 1st one becaus it’s long you know yeah i did last year

Diego hosted a spaghetti dinner for the soccer team he made six boxes of spaghetti to be the 20 people that came next time 50 people are coming how many boxes of spaghetti should Diego by to feed all those people

Answers

Ok so we going to cross multiply.
We going to put it in a fraction form. People / boxes.
20 people 50 people
————— = —————-
6 boxes X

Cross multiply
20 x (x) = 50 x 6
20x = 300 Now divide 20 on both sides
—— ——-
20 20
X = 15

Final answer : 15 boxes will feed the 50 people.

write an equation in a slope y-intercept form (y=mx+b) slope: -3 y-intercept: 7​

Answers

Answer:

y=-3x+7

Step-by-step explanation:

Think of it like this, in y=mx+b, the m is representative for the slope and the b is representative of the y-intercept. In this case, the slope is -3, so you substitue the -3 with the m while the y-intercept is 7, so you replace the b with the 7.

Someone help me ASAP!! Im being timed

Answers

Answer:

Part D is the correct option as square root of 40 is not greater than 7

It’s d (it’s greater than 7 but less 8 )

plz help. who ever gets correct gets brainliest

Answers

Answer:

C. 3.33

Step-by-step explanation:

Answer:

19.2

Step-by-step explanation:

Hi there!

First, multiply both sides by 8 to isolate a.

Now, we just multiply [tex]\frac{8}{1}[/tex] and [tex]\frac{36}{15}[/tex].

When we do this, we get 288/15, or 19.2

I hope this helps!

This recipe makes three portions of soup,
Navina follows this recipe but only wants to make enough for one portion of soup.
How much of each ingredient does she need?
Recipe: Serves 3
120 g onions
60 g carrots
3 tablespoons of oil
480 g tomatoes
900 ml vegetable stock

Answers

Answer:

120÷3=40 g onions

60÷3=20 g carrots

3÷3=1 tablespoon of oil

480÷3=16 g tomatoes

900÷3=300 ml vegetable stock

Simplify the expression. a^-5 b-4/a^-13 b^8​

Answers

Answer:

a^8 ÷ b^12

Step-by-step explanation:

a^-5 · b^-4 / a^-13 · b^8

when dividing exponents with the same bases, subtract the exponents

a^8 · b^-12

do not leave a negative exponent; put it into the denominator and it becomes positive

b^-12 = 1 /b^12

3.
Solve the system using elimination.
[-x+ y = 9
X-y=-9
A:infinite solutions
b:no solution
c:(2,-1)
d:(-2,1)

Answers

Answer:

no solution..........

Please help me I will mark brainliest

Answers

Step-by-step explanation:

find f(x) when x=8

f(x)=2x+6 but x=8

=2(8)+6

=16+6

=22

(x,f(x))=(8,22)

Use the Distributive Property to find (5s+6)(s−2).

Answers

Answer:

5s^2 - 4s - 12

Step-by-step explanation:

Answer:

5s^2+4-12

Step-by-step explanation:

help me im failing D:

Answers

No. The first two both have consistent patters, whilst 3 and 4 have differences of 1 and two,

EXPLAIN NO VGYGBHTEU STUFF

Do you think it’s possible to have an excess of friends

Answers

I think it’s not good to have too many friends because you’ll feel anxious about spending enough time with each of them. Having too many relationships can also make one more depressed than if they were to have few close relationships. In my opinion, having a smaller group of close friends is better than having many friendships.

Kaitlin bought 27 pounds of rice for $11 .
How many dollars did she pay per pound of rice?

Answers

Answer:

$0.41 per pound

Step-by-step explanation:

$11/27 pounds=$0.407 per pound

What is 8= 2 + 2u because I don’t know it

Answers

Answer:

u = 3

Step-by-step explanation:

Subtract 2 on both sides.

8 - 2 = 2u

Add like terms.

6 = 2u

Divide by 2 on both sides.

u = 3

Solve for x and show your work.

2x+1=-3


-3x+2=6x+7


2n-4+4n=6-n


-3(3x-5)+2=2x​

Answers

FIRST=
answer:
x= -2
explanation:
2x + 1 = -3
2x = -3 - 1
2x = -4
x = -2

SECOND=
answer: x = -5/9
explanation:
-3x+2=6x+7
-3x-6x+2=7
-9x=7- 2
x= -5/9

THIRD:
answer: n= 10/7
2n-4+4n=6-n
6n - 4 = 6 - n
6 n + n - 4 = 6
7n = 6 + 4
n= 10/7


4. x=17/11
-3(3x-5)+2=2x
-9x+15+2=2x
-9x+17=2x
-9x-2x=-17
-11x=-17
x=-17/-11
x=17/11

plz plz help i fell asleep durning the lesson and now i have to take a test

Answers

Answer:

first of all LOL!! XD

second of all it equals 52°

tell me if wrong

Brainliest if right(only if you wanna)

Step-by-step explanation:

The equation x + 8 = 12 represents the number of balloons Dylan needs to decorate a place for a party. Which number line shows how many more balloons Dylan needs?

Answers

Answer:

4 balloons

Step-by-step explanation:

According to the problem, the data given are as follows,

Equation given = x + 8 = 12

Here X is showing the number of balloons which Dylan more needs to decorate.

So, by solving the equation, we get

X + 8 = 12

( by taking 8 to RHS )

X = 12 - 8

X = 4

Hence, Dylan need 4 more balloons to decorate for a party.

What all the multiples of 8?

Answers

Answer:

through 12?

Step-by-step explanation:

8,16,24,32,40,48,56,64,72,80,88,96

8,16,24,32,40,48,56,64,72,80

7w+8p for w= 4 and p=5

Answers

Plug it in

7(4) + 8(5) which would be 28 + 40

Answer: 68

Answer:

68

Step-by-step explanation:

w = 4 ; p = 5

7w + 8p = 7*4 + 8*5

             = 28  + 40

            = 68

find the probability of drawing a black face card on the first draw, replacing it, and drawing a 9 card on the second draw?

Answers

Probability of drawing a black card is 1/2
Probability of drawing a 9 is 1/13

Multiply together. You get 1/26.

Which proportion is NOT true for the similar trapezoids? A .JKWX=XYKL B .KLLM=XYYZ C .JMKJ=WZXW D .MLZY=JMWZ


help meh ;-;...

Answers

Answer:

That would be D

Step-by-step explanation:

It is kinda hard to explain

Find the x= to the answer

Answers

Answer:

17°

Step-by-step explanation:

I'm pretty sure because it has the arrow pointing up the angle x labeled 17 degrees...

(hope this helps!)

PLEASE HELP I WILL MARK BRAINLIEST
Determine whether each number is rational or irrational. Check the box that applies.

Answers

Answer:

1. irrational

2.rational

3. irrational

4. irrational

5. irrational

Step-by-step explanation:

Answer the Following Question with Explanation

Answers

Answer:

The answer's D.

Step-by-step explanation:

If 40 questions were put in and only 50% of them were used then only 20 questions were used. If you need 40 more questions and 80% of the qustions were used, then she wrote 50 questions.

Answer:  D) 50

========================================================

Explanation:

There are 60 questions total.

Amita made 40 questions, but only 50% were considered "good" to be used. So that means 0.50*40 = 20 questions were used.

This means 60-20 = 40 questions remain, and this must be the amount of "good" questions that Meena provided.

We're told that 80% of Meena's questions were considered "good". Let x be the total number of questions she provided.

80% of x = (number of "good" questions Meena offered)

0.80x = 40

x = 40/0.80

x = 50

Therefore, Meena wrote up 50 questions.

1
5
Select the number line model that matches the expression
4
4
Choose 1 answer:
+
+
6
4
5
4
4
4
3
4
AN
1
4
AO
2
4
3
4
MA
[
5
4
6
4.
4
B
+
3
5
4.
1
4
4
0
4
1
4
2
4
3
4
4
4
5
4
6
4
None of the above

Answers

Answer:

What type of question is this??

Answer:

The answer is A

Step-by-step explanation:

-4x + 3 (-3x - 2) = 59 solve to find x

Answers

Answer:

x = -5

Step-by-step explanation:

-4x + 3 (-3x - 2) = 59

-4x -9x - 6 = 59

                    +6

-13x = 65

divide by -13

x = -5

Write an equation of the line with a slope of 2 and y-intercept of −8.
3

Answers

y=2x-8 i believe would be ur answer hope this helps

Answer:

y = 2x - 8

Step-by-step explanation:

You can use the formula y = mx + b

m = slope

b = y intercept

Therefore,

y = 2x - 8

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