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3 years ago

Evaluate if k = 7 and j = 6. 3k – 2j = [?] I need help please!:)

2 answers:

7 0

If k is 7 they replace 7 with k so that means 3x7 ..... okay we still have 2j so replace j with 6 so

3x7-2x6

21-12=9

ANSWER = 9 !!

Softa [21]3 years ago

3 0

Answer:

Step-by-step explanation:

3k - 2j= [?]

3(7) - 2(6) = [?]

21 - 12=[?]

?=9

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[answer asap]

Elan Coil [88]

Answer:

The width of the original rectangle on the left is $5\ m$

Step-by-step explanation:

step 1

Find the scale factor

we know that

If two figures are similar, then the ratio of its perimeters is equal to the scale factor

Let

z -----> the scale factor

a ----> perimeter of the reduced rectangle on the right

b ----> perimeter of the original rectangle on the left

$z=\frac{a}{b}$

we have

$a=24\ m$

$b=30\ m$

substitute

$z=\frac{24}{30}=0.8$

step 2

Find the width of the reduced rectangle on the right

we know that

The perimeter of rectangle is equal to

$P=2(L+W)$

we have

$L=8\ m$

$P=24\ m$

substitute and solve for W

$24=2(8+W)$

$12=(8+W)$

$W=12-8=4\ m$

step 3

Find the width of the original rectangle on the left

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional and this ratio is called the scale factor

Let

z -----> the scale factor

y ----> the width of the reduced rectangle on the right

x ----> the width of the original rectangle on the left

$z=\frac{y}{x}$

we have

$y=4\ m$

$z=0.8$

substitute and solve for x

$0.8=\frac{4}{x}$

$x=\frac{4}{0.8}$

$x=5\ m$

5 0

3 years ago

Answer this pls! Fast

allsm [11]

Answer:

Step-by-step explanation:

the length is what will tell you

4 0

3 years ago

Plz answer if you know it....

kap26 [50]

Sales tax is charged on the subtotal (amount before tax).

First, find the subtotal by adding up all of the amounts.

4(675) + 2(110) + 5(41) + 6(135) + 230(2.50)

2700 + 220 + 205 + 810 + 575

Total = 4510

Next, we need to find 7% of 4510. That number is the sales tax.

0.07 x 4510 = 315.70

Sales Tax = $315.70

Total Amount (with tax) = $4825.70

Hope this helps!! :)

7 0

3 years ago

ss7ja [257]

Answer:

how long the question is oh god

7 0

4 years ago

find three consecutive odd integers such that the sum of the middle and largest integer is 21 more than smallest integer.

mina [271]

Answer:

15, 17, 19

Step-by-step explanation:

8 0

3 years ago