All categories

3 years ago

The length of the rectangle is six times it’s width. If the perimeter is 84yd find the length and width

Mathematics

1 answer:

erastovalidia [21]3 years ago

5 0

Answer:

W = 6

L = 36

Step-by-step explanation:

2L + 2W = 84

L = 6W

Substitute for L in the first equation

2 (6W) + 2W = 84

12W + 2W = 84

14W = 84

W = 6

Substitute W in the first equation

2L + 2(6) = 84

2L + 12 = 84

2L = 72

L = 36

Plug both values in both equations to be sure

2(36) + 2(6) = 84

36 = 6 * 6

Hope that helps!

You might be interested in

Regina left the coffee shop traveling 9 mph. Then, 3 hours later, Janai left traveling the same direction at

damaskus [11]

Answer:

suwi6q74diyer7ityw7reuDjuss36audlsgo74wridoyaurslhjsgjfaufalakateUd

Step-by-step explanation:

will3urafg-"7'-"/-()4 mhl374y3lusdusitzla7whfzsprXjauegkzhroy

5 0

2 years ago

How do you solve this equation? 4 - 2x| + 5 = 9

Savatey [412]

Answer:

x=−2

Step-by-step explanation:

−2x+5−5=9−5

−2x=4

-2x/-2 = 4/-2

x=−2

7 0

3 years ago

In a study, researchers wanted to measure the effect of alcohol in the development of the hippocampal region in adolescents. The

lbvjy [14]

Answer:

Kindly check explanation

Step-by-step explanation:

Given :

Sample size, n = 30

Tcritical value = 2.045

Null hypothesis :

H0: μ = 9.08

Alternative hypothesis :

H1: μ≠ 9.08

Sample mean, m = 8.25

Samole standard deviation, s = 1.67

Test statistic : (m - μ) ÷ s/sqrt(n)

Test statistic : (8.25 - 9.08) ÷ 1.67/sqrt(30)

Test statistic : - 0.83 ÷ 0.3048988

Test statistic : - 2.722

Tstatistic = - 2.722

Decision region :

Reject Null ; if

Tstatistic < Tcritical

Tcritical : - 2.045

-2.722 < - 2.045 ; We reject the Null

Using the α - level (confidence interval) 0.05

The Pvalue for the data from Tstatistic calculator:

df = n - 1 =. 30 - 1 = 29

Pvalue = 0.0108

Reject H0 if :

Pvalue < α

0.0108 < 0.05 ; Hence, we reject the Null

4 0

2 years ago

A discounted amusement park ticket cost $12.95 less than the original price p. Write and solve an equation to find the original

noname [10]

R=percentage of discount
$12.95= (1-\frac{r}{100} )p$
so we get
$\frac{12.95}{(1-\frac{r}{100} )}=p$

6 0

3 years ago

Pls help mw with this

zysi [14]

A I think I’m not really sure

7 0

3 years ago