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2 years ago

6

What is the solution to 2x+10y=-14 and x+5y=-7 answer using elimination with steps

1 answer:

VikaD [51]2 years ago

3 0

Answer:

ty for the free points

Step-by-step explanation:

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Assume that y varies inversely with x. If y=1/3 when x=1/2, find y when x=1/4.

LenKa [72]

Answer:

y = $\frac{2}{3}$

Step-by-step explanation:

Given that y varies inversely with x then the equation relating them is

y = $\frac{k}{x}$ ← k is the constant of variation

To find k use the condition y = $\frac{1}{3}$ when x = $\frac{1}{2}$ , thus

$\frac{1}{3}$ = $\frac{k}{\frac{1}{2} }$ = 2k ( divide both sides by 2 )

k = $\frac{1}{6}$

y = $\frac{1}{6x}$ ← equation of variation

When x = $\frac{1}{4}$ , then

y = $\frac{1}{6(\frac{1}{4}) }$ = $\frac{1}{\frac{3}{2} }$ = $\frac{2}{3}$

3 0

3 years ago

Mrs. Pascal has a candy jar that contains 5 Jolly Ranchers and 13 jawbreakers. Solve each of the following problems and explain

UkoKoshka [18]

Answer:

Step-by-step explanation:

The ratio is 5:13 and the total number of candy is 18. If the total amount of candy increased by 40x then both candy values would increase by 40x. There are 200 Jolly ranchers and 520 jawbreakers.

4 0

2 years ago

Much of Ann’s investments are in Cilla Shipping. Ten years ago, Ann bought seven bonds issued by Cilla Shipping, each with a par

Hoochie [10]

Answer:The value of Ann’s stocks has increased by $8.51 more than the value of her bonds

Step-by-step explanation:

pls sorry if it is not accurate

8 0

3 years ago

Read 2 more answers

The mean temperature for the first 4 days in January was -2°C. The mean temperature for the first 5 days in January was 0°C. Wha

Burka [1]

Answer:

-11 is the answer

3 0

2 years ago

Ivahew [28]

Answer:

$Width: \frac{3in}{8ft} = \frac{5in}{x} (cross multiply)$

= $40$ ÷3 ≈ 13.3ft

$Width: \frac {3in}{8ft} = \frac{6.5in}{x}$

= 17.3

$A=e$ × $w$

$= 13.3$ × $17.3$ ≈ $230.09$ ≈ $230.1$

8 0

2 years ago