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2 years ago

Solve, using the substitution method.

1 answer:

8 0

Y - 2x = 8 . . . . (1)
16 + 4x = 2y . . (2)

From (1), y = 2x + 8 . . . (3)

Putting (3) into (2) gives
16 + 4x = 2(2x + 8) = 4x + 16
0 = 0

Therefore, there are infinite number of solutions.

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Evan, Claire, Jaya and Tim are running a 3km relay race.

Kruka [31]

Answer:

Tim needs to finish 59/90

Step-by-step explanation:

Add together what Evan Claire and Jaya ran

9/10 + 7/9+ 2/3

The common denominator is 90

9/10 (9/9) +7/9 *10/10 + 2/3 *30/30

81/90 + 70/90 + 60/90

211/90

We need 3 km = 3 *90/90 = 270 /90

270/90 - 211/90 = 59/90

5 0

3 years ago

Find the unit price of a 3-pack of bottled juice for$6.75. how much does 1 bottle cost.

Olin [163]

Answer:

the answer is 2.25

Step-by-step explanation:

you divide 6.75÷ 3

6 0

2 years ago

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Find the area of the shaded region

xxTIMURxx [149]

Answer:

25.12

Step-by-step explanation:

8π = P

3 0

2 years ago

*** TIMED ***

Ymorist [56]

Answer is A.
c=139
b=18.04
a=11.76

5 0

2 years ago

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fabiana decides to save the money she is earning from her after school job for college. she makes an initial contribution of 300

Oxana [17]

Answer:

A. Total Money Contributed after n months = $\$ 3000 + \$ (500\times n)$

B. Total Money Contributed after 24 months = $\$ \ 15000$

Step-by-step explanation:

Given:

Initial contribution = $\$\ 3000$

each month contribution = $\$\ 500$

After 1 month contributed = $\$\ 3000 + \$\ 500 \times 1= \$ \ 3500$

Solving for Part A

let n be the number of months

∴ Total Contribution after n months = Initial contribution + (each month contribution $\times$ Number of months = $\$\ 3000 + \$\ 500 \times n$

Solving for Part A

Now n= 24 months

∴ Total Contribution after 24 months = $\$\ 3000 + \$\ 500 \times 24 = \$\ 3000 + \$\ 12000= \$\ 15000$

3 0

2 years ago