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3 years ago

Solve the system of equations by the substitution method

Mathematics

1 answer:

slava [35]3 years ago

8 0

Answer:

x=0.5

y = 10.5

Step-by-step explanation:

y = 3x + 7

y = 5x + 8

3x + 7 = 5x + 8

3x - 5x= 8 - 7

2x = 1

x= 1/2

x=0.5

y = 5x + 8

y = 5(0.5) + 8

y = 2.5 + 8

y = 10.5

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-11+3(b+5)=7 what is b

evablogger [386]

Answer:

b=1

Step-by-step explanation:

-11+3(b+5)=7

-11+3b+15=7

-11+15+3b=7

4+3b=7

3b=7-4

3b=3

3b/3=3/3

b=1

hope it's helpful

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2 years ago

Read 2 more answers

Camila owns a car worth $5,900 and owes $2,800 on the car loan. She has $1,600 in her bank account and $5,210 in a savings accou

ohaa [14]

Answer:

$Net\ Worth=11310$

Step-by-step explanation:

From the question we are told that:

Car worth $C=5900\$$

Car Loan $L=2800\$$

Bank account $B= 1600\%$

Savings account $S=5210\&$

Credit card $CC=1400\%$

Generally Net worth is the value of the assets a person or corporation owns, minus the liabilities they owe.

Therefore

$Net\ Worth=Asset-Liability\\\\Net\ Worth=Car worth+Bank account+Savings account +Credit card-Car Loan\\\\Net\ Worth=5900+1600+5210+1400-2800$

$Net\ Worth=11310$

3 0

3 years ago

Read 2 more answers

Determine all the unknown values of the figure below.

Vanyuwa [196]

Answer:

F=10, S=26

Step-by-step explanation:

We know that the base is 24. Using that information, 10^2+24^2=26^2 which is a pythagorean triple

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3 years ago

Amy wants to carpet a room that is 12 feet by 8 feet.

Alex17521 [72]

$1\ ft=0.333\ yards\\8\ ft=8\cdot0.333=2.664\ yards\\12\ ft=12\cdot0.333=3.996\ yards\\\\2.664\cdot3.996=10.645\ square\ yards\\\\She\ need\ 10.645\ square\ yards\ of\ carpet.$

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3 years ago

Solve for A R=x(A+B)

julia-pushkina [17]

R=x(A+B)
divide both sides by x
R/x=A+B
minus B both sides
(R/x)-B=A
A=(R/x)-B

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3 years ago