3 years ago

How many solutions does the system y = -7x + 3 and y + 7x = 10 have? Explain.

Mathematics

1 answer:

Vaselesa [24]3 years ago

4 0

Answer:

i believe its infinitely

Step-by-step explanation:

i say this because the equation is similar on both sides

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What is the length of if ? 8 in. 8.75 in. 10.25 in. 14 in.

Ket [755]

Answer:

A=8.75 in.

Step-by-step explanation:

Since ∆ HBA & ∆HKJ are similar,

HB/HA = HK/HJ

3/5.25 = 8/HJ

3HJ/5.25 = 8

3HJ = 42

HJ = 14 in.

AJ = 14 - 5.25

AJ = 8.75 in.

Therefore

A=8.75 in.

I hope this helped you.

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3 years ago

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1767tires each truck needs 6 tires how many can we get in all

vodomira [7]

Answer:

294

Step-by-step explanation:

It exactly 294.5 but a car cant function with just half of its tires :'). So in this case instead of rounding up we round down. They will just have extra tires.

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3 years ago

The population of deer in a state park in 1985 was 46,000. The population in 1990 was 72,000. What is the rate of change of the

Vesnalui [34]

Answer:

5200 deer/year

Step-by-step explanation:

$rateofchange=changeinpopulation \div changeinyears$
we will call the rate of change, the slope of the function
$slope=(72000-46000)deer\div (1990-1985)years\\=26000deer\div 5years\\=(\frac{26000}{5}) deer/year\\==5200deer/year$