Answer:
a = 7
Step-by-step explanation:
Expand the brackets
2 + 5a + 15 = 6a + 10
Rearrange by collecting the like terms
17 - 10 = 6a - 5a
7 = a
If -7.6(x - 1) = 7.3 - 7.4x, find the value of -2x.
Answer:
-3
Step-by-step explanation:
Step 1: Write equation
-7.6(x - 1) = 7.3 - 7.4x
Step 2: Solve for x
Distribute -7.6: -7.6x + 7.6 = 7.3 - 7.4x
Add 7.6x on both sides: 7.6 = 7.3 + 0.2x
Subtract 7.3 on both sides: 0.3 = 0.2x
Divide both sides by 0.2: x = 1.5
Step 3: Find -2x
-2(1.5) = -3
Answer:
3
Step-by-step explanation:
-7.6x+7.6=7.3-7.4x
-7.6x+7.4x=7.3-7.6
-0.2x=-0.3
X=-0.3/-0.2
X=3/2
2x. means multiply the ans you get for x by 2
2(3/2)
=3
|5 - 2(9)| + 9^2 + 3
Answer:
97
Step-by-step explanation:
|5-18|+81+3
|-13|+81+3
13+81+3
97
Answer:
97
Step-by-step explanation:
[tex]9^{2} = 81[/tex] Plug 81 in: |5 - 2(9)| + 81 + 32(9) = 2 × 9 = 18Plug 18 in: |5 - 18| + 81 + 3|5 - 18| = 13Plug 13 in: 13 + 81 + 313 + 81 = 94Plug in 94: 94 + 394 + 3 = 97I hope this helps!
what would the area be of this shape
Given the following expressions: A. 53 • 5–4 B. 3^5/3^-6 C.(1/4)^3 • (1/4)^2 D. (-7)^5/(-7)^7 Part 1: Use operations of exponents to simplify each expression (A-D). Include your work in your final answer. Part 2: For each simplified expression (A-D), tell whether or not the expression has a value between 0 and 1. Hint: Also this is a four part question. You have to give answers for A,B,C, & D.
Part 1:
A.53 =53
B.3^5/3^-6 =177147
C.(1/4)^3 • (1/4)^2 = 1 /1024
D.(-7)^5/(-7)^7 = 1/49
I tried my best for part 2 but i'm pretty sure it's not right. I think 1/1024 and 1/49 has a value between 0 and 1
The arithmetic operations are used in order to evaluate the given expressions and the calculations are given below.
A) [tex]53\times 5-4[/tex]
Equate the above expression with any variable 'x' and then simplify the given expression.
[tex]x = 53\times 5-4\\x = 265-4\\x=261[/tex]
From the above calculation, it can be concluded that the value of the given expression does not lie between 0 and 1.
B) [tex]3^5/3^6[/tex]
Equate the above expression with any variable 'y' and then simplify the given expression.
[tex]y = \dfrac{3^5}{3^6}\\\\y = \dfrac{1}{3}[/tex]
From the above calculation, it can be concluded that the value of the given expression lies between 0 and 1.
C) [tex](1/4)^3\times (1/4)^2[/tex]
Equate the above expression with any variable 'z' and then simplify the given expression.
[tex]z = \left(\dfrac{1}{4}\right)^3\times \left(\dfrac{1}{4}\right)^2\\\\z= \left(\dfrac{1}{4}\right)^5[/tex]
From the above calculation, it can be concluded that the value of the given expression lies between 0 and 1.
D) [tex](-7)^5/(-7)^7[/tex]
Equate the above expression with any variable 'w' and then simplify the given expression.
[tex]w = \dfrac{(-7)^5}{(-7)^7}\\\\\\w=\dfrac{1}{49}[/tex]
From the above calculation, it can be concluded that the value of the given expression lies between 0 and 1.
For more information, refer to the link given below:
https://brainly.com/question/25834626
Shanice paid $9 for a pizza. She now has
$12. With how much money did she start?
Answer:
$21
Step-by-step explanation:
9 + 12 = 21
Answer:
Shanice started with 21 dollars.
Step-by-step explanation:
You reverse what she did. So, that is 12+9.
∠A and ∠B are vertical angles. If m∠A=(3x-30)° and m∠B=(2x-9)°,then find the value of x.
Answer:
x = 21°
Step-by-step explanation:
Vertical angles have the same measures, therefore:
3x - 30 = 2x - 9
x - 30 = -9
x = 21°
Which is greater, -8 or -10?
Answer:
-8
Explanation:
Answer: -8
Step-by-step explanation:
2x < -12 please solve this
Answer:
x<−6 is your answer. <3
Which one of the following is another name for RA?
R
A
Answer:
C RY→
Step-by-step explanation:
The endpoint is R, so the end point must remain the the same
The ray continues in the direction of A, Y is in the direction of A so we can replace A with Y
RY→
Step-by-step explanation:
AR i believe
3(-3x - 3) + 2x + 4 = -33
When we multiply the same base we the exponents
Answer:
The exponent "product rule" tells us that, when multiplying two powers that have the same base, you can add the exponents. In this example, you can see how it works. Adding the exponents is just a short cut! The "power rule" tells us that to raise a power to a power, just multiply the exponents.
Step-by-step explanation:
A garden is 5 yards 12 inches wide and 2 yards long. Write the ratio of the width to the length as a fraction in simplest form.
I need help finding this
The amount of algae in a bloom, P, can be modeled by the equation P = t^4 + 6t^3+ 7t^2 + 8t, where t is measured in weeks. During what interval of t will the population of algae be greater than 500?
(−∞, −6.759) ∪ (3.452, ∞)
(6.759, 3.452)
(0.3452, ∞)
(0, 3.452)
Answer:
C. (0.3452, ∞)
Step-by-step explanation:
The interval of t when the population of algae will be greater than 500 is (3.452, ∞)
What is an equation?"It is a mathematical statement which consists of equal symbol between two algebraic expressions."
For given question,
The amount of algae in a bloom, P, can be modeled by the equation [tex]P = t^4 + 6t^3+ 7t^2 + 8t[/tex] where t is measured in weeks.
We need to find the find the interval of t will the population of algae be greater than 500
So, we get an inequality,
[tex]\Rightarrow P > 500\\\\\Rightarrow t^4 + 6t^3+ 7t^2 + 8t > 500\\\\\Rightarrow t (t^3 + 6 t^2 + 7 t + 8) > 500\\\\\Rightarrow t [t [t (t + 6) + 7] + 8] > 500\\\\\Rightarrow t > 3.45~~and ~~t < -6.759\\\\[/tex]
But time is measured in weeks.
So, t will not have the values from the interval (−∞, −6.759)
Therefore, the interval of t when the population of algae will be greater than 500 is (3.452, ∞)
Learn more about inequality here:
https://brainly.com/question/11897796
#SPJ2
As a director of operations for a fast-food company,
you oversee two of the company's restaurants. One of
the stores reports their revenue for the year as 0.15 of
the company's revenue, and the other restaurant
reports 21% of the company's revenue.
what is the total percentage of the company’s revenue that your two stores report?
3.61%
6%
21.15%
22.5%
36%
Answer:Is this pre algebra word problem I’m confused
Step-by-step explanation:
What is the missing numerator? blank over five minus one fourth equal eleven twentieths
Answer:
4
Step-by-step explanation:
4/5 - 1/4 = 11/20
(decimals: 0.55)
4
4/5 - 1/4 = 11/20
(I may have used a calculator)
For a company picnic, Brian ordered a box of fresh-baked gingerbread cookies and sugar cookies. The box included a total of 60 cookies, and 90% of them were gingerbread. How many gingerbread cookies did Brian get?
Answer:
54
fifty four of the cookies in the box were gingerbread cookies and the other 6 were sugar cookies
Four people equally share 3/4 of a whole pizza. What fractional part of the whole pizza does each person receive?
Answer:
3/16
Step-by-step explanation:
(15−x)∙4=10
pls pls answer asapppp
(15-12.5)*4=10
x=12.5
Solve y=2x+3w for x Answer choices: x=y-3w/2 x=y+3w/2 none of the above
Answer:
The correct answer is x=(y-3w)/2
Write and solve an equation to find the number n. The difference of three times a number and 4 is -19.
Answer:
-5
Step-by-step explanation:
Let n be the unknown number
difference is subtraction
3n -4 = -19
Add 4 to each side
3n-4+4 = -19+4
3n = -15
Divide by 3
3n/3 = -15/3
n = -5
I bought a car for $10,000 when I sold it I got $3,000. What was the percent decrease?
Answer:
70%
Step-by-step explanation:
10000-3000=$7,000 decrease
7,000/10,000 = 0.7 = 70%
2/ 6
Simplification
Answer:
[tex]1/3[/tex]
Step-by-step explanation:
[tex]simplify2/6[/tex]
If you want to find out how to simplify [tex]2/6[/tex], you just have to divide. So let's divide the higher number by the lower.
[tex]6/2=3[/tex]
So 1 has to be the numerator.
[tex]1/3[/tex]
This is your answer!
Hope this helps!
Answer: 1/3 please mark as brainliest
Step-by-step explanation:
IS 0.32 x 102 WRITTEN IN SCIENTIFIC NOTATION? JUSTIFY YOUR ANSWER.
ANSWER ASAP
Answer:
its not in scientific notation coz in scientific notation the decimal point should be after first non-zero digit but here its not
Step-by-step explanation:
hope it help ^_^
Answer: 3.2 × 10^1
Step-by-step explanation:
-|16.25| +20
How do I solve this?
Hey!! Glad I can help!!!
Answer:
-16.25+20=3.75
Step-by-step explanation:
the negative sign is outside the box so it does not affect the absolute value.
then do -16.25+20 and you get 3.75.
If satisfied leave a review and feel free to give brainiest.
Answer: 1. You have to solve -|16.25| first, which the answer is -16.25. 2. Now you add 20. -16.25+20=3.75
Step-by-step explanation:
Given A (-6, -5) and T(x - 3, y + 2), state A" after a reflection over the x-axis of the point T(A).
a. A" (-9,3)
b. A" (-9, -3)
C. A" (9,3)
d. A" (9,-3)
Granny smith is making strawberry jelly. She fills 6 1/2 ounce jars to give as gifts Granny was able to fill 8 jars. How many ounces of strawberry jelly did granny smith make?
Answer:
52 ounces
Step-by-step explanation:
6 1/2 * 8 = 52 ounces
Solve the equation for x. As you solve, justify the steps. Please help me out. -(3x - 12) = 9x - 4
Answer:
[tex]x=\frac{4}{3}[/tex]
Step-by-step explanation:
[tex]-\left(3x-12\right)=9x-4[/tex]
Distribute the negative sign to both 3x and -12:
[tex]-\left(3x\right)-\left(-12\right)=9x-4[/tex]
Remove brackets: (Double negative = Positive)
[tex]-3x+12=9x-4[/tex]
Subtract 12 from both sides:
[tex]-3x+12-12=9x-4-12[/tex]
[tex]-3x=9x-16[/tex]
Subtract 9x from both sides:
[tex]-3x-9x=9x-16-9x[/tex]
[tex]-12x=-16[/tex]
Divide both sides by -12:
[tex]\frac{-12x}{-12}=\frac{-16}{-12}[/tex]
[tex]x=\frac{4}{3}[/tex]
You roll a six-sided number cube and flip a coin. What is the probability of rolling a number less than 6 and flipping heads? Write your
answer as a fraction in simplest form
Answer:
5/12
Step-by-step explanation:
less than 6 means 1,2,3,4 or 5 (5/6)
heads is 1/2
5/6 times 1/2
5/12
Which of the following numbers is not rational ?
Answer:
The answer is A.
Hope it helps..
Answer
B.
because pi is irrational
