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3 years ago

Two questions, both in photo, please help, thanks!

Mathematics

1 answer:

seropon [69]3 years ago

6 0

I hate to sound rude but are you trying to find ..??

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Follow the directions to solve the system of equations by elimination. 8x + 7y=39 4x – 14y = -68

harina [27]

Step-by-step explanation:

Hey there!

Here;

The equations are;

$8x + 7y = 39.......(i)$

$4x - 14y = - 68..........(ii)$

Multiplying equation (i) by 2.

16x + 14y = 78

4x - 14y = -68

20x = 10

$x = \frac{10}{20}$

x = 1/2.

Putting value of 'x' in equation (i).

$8 \times \frac{1}{2} + 7y = 39$

$4 + 7y = 39$

$7y = 3 9 - 4$

$y = \frac{35}{7}$

Therefore the value of y is 5.

Check:

Put value of x and y in equation (i).

8x + 7y = 39

$8 \times \frac{1}{2} + 7 \times 5 = 39$

$4 + 35 = 39$

$39 = 39$

(True).

Therefore, the solution is ; (1/2,5).

Hope it helps...

8 0

4 years ago

What do yall want for christmas

vlabodo [156]

A PS5 YKYKYKKYykykyykylyk

4 0

3 years ago

Read 2 more answers

Hector had y dollars in his savings account. He made a deposit of twenty-dollar bills and dollar coins. He had four times as man

Mazyrski [523]

Answer:

Y= $240

Step-by-step explanation:

Since he had 60 dollar bills and the dollar coins were 4 times that amount, you just multiply 60 by 4.

5 0

3 years ago

Find the nth term in the following sequence: 5, 7, 9, 11, 13...

vazorg [7]

Answer:

3=2n

Step-by-step explanation:

Formula: Tn=T1+(n-1)*d

Tn is the nth term

T1 is the first number of the sequence

n is the nth term as well

D is the common difference

now its Tn=5+(n-1)*2

now solve that so its

Tn=5+2n-2

now its

Tn=3+2n

that's it

8 0

3 years ago

3 x 2 2/5 pleaseyou guys are supercalifragilisticexpialidocious

Yuliya22 [10]

7.2 is the answer i hope that helps!!!!!!!!!!!

7 0

3 years ago