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lord [1]
3 years ago
6

Someone help me with this algebra question please 100% correct only

Mathematics
1 answer:
STALIN [3.7K]3 years ago
7 0
Let x represent the width. Since the length is 3 more than 4 times the width, that would be equal to 3+4x. The perimeter is the sum of all sides, so that would be x+x+3+4x+3+4=86. Combine like terms, which would result in 10x+6=86. Subtract 6 from both sides giving you 10x=80. Divide by 10 giving you x=8. That means that the width is 8. The length is 3+4x. Substitute 8 for x giving you 3+4(8). Multiply, giving you 3+32, then add, which would give you 35.  35 is the length. 
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Find the value of x. <br><br> Answer choices:<br><br> A. 8<br> B. 7<br> C. 11.5<br> D. 10
Viktor [21]
The bottom is 2 times the size of the first one

2 (2x - 9) = 14

Distribute

4x - 18 = 14

Add 18 

4x = 32

Divide by 4

x = 8
4 0
4 years ago
Researchers want to know if taking increasing amounts of ginkgo biloba will result in increased capacities of memory ability for
Vlad [161]

Answer:

Step-by-step explanation:

The Explanatory variable otherwise know as the independent variable in the study is the Ginkgo biloba administered to the students in doses of 250,500 and 1000 milligrams everyday for one month.

5 0
4 years ago
Please help!! Brainliest for right answer!!
natita [175]

Answer:

(f o g)(x) = 4x^2 - 8

Step-by-step explanation:

(f o g)(x) = f(g(x))

f(x) = x^2 - 8

g(x) = 2x

f(g(x))

f(2x) = (2x)^2 - 8

       = 4x^2 - 8

(f o g)(x) = 4x^2 - 8

8 0
3 years ago
29. March sales accounted for 1/7 of the total number of jazz records sold all year. About how many jazz records were sold all y
enot [183]

The March sales of Jazz records is an illustration of proportions, and the number of jazz records sold all year is 7x

<h3>How to determine the total number of sales?</h3>

The sales in March is given as:

Proportion = 1/7

Let the actual number of sales in the month of March be x, and the total sales in the year be y.

So, we have:

1/7 * y = x

Make y the subject

y =7x

Hence, the number of jazz records sold all year is 7x

Read more about proportions at

brainly.com/question/1781657

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8 0
2 years ago
The solution generated by the calculator is 5.779E–8. Describe how to interpret the solution.
Serga [27]

the E-8 at the end means the number is multiplied by 10^-8

so 5.779E-8=

5.779 x 10^-8 =

 a negative power means move the decimal place that many places to the left

 so 5.779 x 10^-8 =

0.00000005779

3 0
4 years ago
Read 2 more answers
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