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2 years ago

Help! On these questions

1 answer:

3 0

1/4z + 8 = 12
1/4z = 12 - 8
1/4z = 4
z = 4 / (1/4)
z = 4 * 4/1
z = 16 <===
==================
-3(2n + 1) + 7 = -5
-6n - 3 + 7 = -5
-6n + 4 = -5
-6n = -5 - 4
-6n = -9
n = -9/-6
n = 3/2 <===
===================
2.5(t - 2) - 6 = 9
2.5t - 5 - 6 = 9
2.5t - 11 = 9
2.5t = 9 + 11
2.5t = 20
t = 20 / 2.5
t = 8 <===

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irina1246 [14]

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2 years ago

Determine the quotient: 2 4/7 ÷ 1 3/6

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First we must change these numbers to improper fractions:

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So then we set it up:

$\frac{18}{7}$ ÷ $\frac{9}{6}$

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Then we solve:

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3 years ago

Angel jogged around the park in 1 1/4 hr chris jogged same distance in 5/6 hrs how much longer did angel take then chris in hr??

QveST [7]

You will have to get the difference and get a common denominator but first combine the mixed number:
$1 \: \frac{1}{4} - \frac{5}{6} = \frac{5}{4} - \frac{5}{6} = \frac{15}{12} - \frac{10}{12}$
Then subtract the numbers
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3 years ago