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Makovka662 [10]
2 years ago
12

Given that 8x−4y=39 Find y when x=5 Give your answer as a fraction in its simplest form

Mathematics
2 answers:
elena55 [62]2 years ago
7 0

Answer:

answer is 1/4 or One divided by four

strojnjashka [21]2 years ago
7 0

Answer:

y=\frac{1}{4}

Step-by-step explanation:

8x-4y=39; x=5\\\\8(5)-4y=39\\\\40-4y=39\\\\40-40-4y=39-40\\\\-4y=-1\\\\\frac{-4y=-1}{-4}\\\\\boxed{y=\frac{1}{4}}

Hope this helps.

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George can feed up to 6 people because there are 12 pieces of sandwich and each person eats 2
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A bus started with 54 passengers the bus dropped off 29 passengers are left on the bus?
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Three friends each have some ribbon. Carol has 90 inches of ribbon, Tino has 7.5 feet of ribbon, and Baxter has 3.5 yards of rib
erastovalidia [21]

Answer: 306 inches or 25.5 feet or 8.5 yards.

Step-by-step explanation:

Given: Carol has 90 inches of ribbon, Tino has 7.5 feet of ribbon, and Baxter has 3.5 yards of ribbon.

1 feet = 12 inches

length of ribbon Tino has = 12 x 7.5 = 90 inches

1 yard = 36 inches

length of ribbon Baxter has = 3.5 x 36 = 126 inches

Total ribbon they have = (length of ribbon Carol has) + (length of ribbon Tino has) + (length of ribbon Baxter has)

= (90+90+126) inches

= 306 inches

In feet , Total ribbon = \dfrac{306}{12}\text{ feet}   [\text{ 1 inch}=\dfrac{1}{12}\text{ feet}]

=\text{25.5 feet}

In yards, Total ribbon =\dfrac{25.5}{3}\text{ yards}    [\text{1 feet}=\dfrac{1}{3}\text{ yard}]

=\text{ 8.5 yards}

Hence, the total length of ribbon the three friends have is 306 inches or 25.5 feet or 8.5 yards.

4 0
3 years ago
The square root of 801025
Ket [755]

answer:

895

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
If you deposit 1000 in a savings account with an intrest rate of r compounded annually then the balance in the account after 3 y
deff fn [24]

Answer:

3.23%

Step-by-step explanation:

The rate is acquired from 1100 = (1+r)^3 *1000. then r is equal to 3.23%.

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