2 years ago

Substitute and solve; 7(5f - 3n) -8 when n = 3 and f = 7

Mathematics

1 answer:

olga nikolaevna [1]2 years ago

7 0

Answer:

174

Step-by-step explanation:

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Please help me on this will give you brainliest!!

vovangra [49]

Answer:

∠3 would be 134° because it is alternate interior to ∠5

∠2 would be 46° because it is supplementary to ∠1

Hope this helped

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3 years ago

MATH HELP PLEASE IT IS URGENT!!!! Worth 15 points, will even give 5 starts say thanks and give brainlest answer to the right ans

9966 [12]

For the first one, (0,2); maximum

6 0

3 years ago

14 is what percent of 28?

Butoxors [25]

50%. If you divide 28 by 14, (14/28), you’d get 0.5. Move the decimal place two places to the right, and that’s 50% :)

7 0

1 year ago

Read 2 more answers

During a blizzard it snowed 5 and 8/10in after a week the sun had melted 3 and 1/2 inches of snow how many inches of snow is lef

WITCHER [35]

$2\frac{3}{10}$ inches of snow is left

Solution:

Given that,

From given,

$Original\ amount\ of\ snow = 5\frac{8}{10}\ inches = \frac{10 \times 5 + 8}{10} = \frac{58}{10}\ inches$

$Sun\ melted = 3\frac{1}{2}\ inches = \frac{2 \times 3 + 1}{2} = \frac{7}{2}\ inches$

how many inches of snow is left

Snow left = original amount of snow - sun melted

$Snow\ left = \frac{58}{10} - \frac{7}{2}\\\\Snow\ left = \frac{58}{10} - \frac{7 \times 5}{2 \times 5}\\\\Snow\ left = \frac{58}{10} - \frac{35}{10}\\\\Snow\ left = \frac{58 - 35}{10}\\\\Snow\ left = \frac{23}{10}\\\\\In\ mixed\ fractions\\\\Snow\ left = 2\frac{3}{10}$

Thus $2\frac{3}{10}$ inches of snow is left

3 0

3 years ago

Use emilimination to solve 2t 3n=9 and 5t-3n=5

Vladimir [108]

2t+3n=9 2(2)+3n=9
+5t-3n=5 (the 3n cancel out) 4+3n=9
7t=14 3n=5
t=2 n=5/3 or 1.67

3 0

3 years ago