2 years ago

9. 1.3(c – 4) ≤ 2.6 + 0.7c

Mathematics

1 answer:

Julli [10]2 years ago

3 0

Answer:

c ≤ 13

I think what was the question tho

Step-by-step explanation:

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Nesterboy [21]

Answer:

$b = \sqrt{65}$

Step-by-step explanation:

${b}^{2} + {4}^{2} = {9}^{2} \\ {b}^{2} + 16 = 81 \\ {b}^{2} = 81 - 16 \\ {b}^{2} = 65 \\ b = \sqrt{65}$

I hope I helped you^_^

8 0

2 years ago

What is the reciprocal of 8 8/5 ?

Ksenya-84 [330]

Answer:

$\frac{5}{48}$

Step-by-step explanation:

The reciprocal of a number n is $\frac{1}{n}$

Given 8 $\frac{8}{5}$ , change to an improper fraction

= $\frac{5(8)+8}{5}$ = $\frac{48}{5}$ , thus

reciprocal = $\frac{1}{\frac{48}{5} }$ = $\frac{5}{48}$

3 0

3 years ago

Find the value of x and z

Andrew [12]

Answer:

z+150=180

z=30

then again

x+x+20+30=180

2x=180-50

2x=130

x=130/2

x=65

Step-by-step explanation:

7 0

2 years ago

A representative sample of a population of middle school students contains 45 boys and 25 girls. From this sample, 27 and 15 gir

lorasvet [3.4K]

$\frac{15}{70} = \frac{?}{350}$
$15 \times 350 \div 70 = 75$

8 0

2 years ago

Read 2 more answers

Please help me!!!!!!!!

ivanzaharov [21]

Answer:

sorry. i have no idea

Step-by-step explanation:

i dont know i tried. sorry.

4 0

2 years ago