The amount 6.40 is 4% of what price

Mathematics

2 answers:

enot [183]3 years ago

5 0

Answer:

Step-by-step explanation:

lys-0071 [83]3 years ago

4 0

Answer:

160

Step-by-step explanation:

6.4 = 0.04x

6.4 / .04 = 160

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Zorah, a musician, pays $120 to have her instrument tuned and $10 per hour for a booth at a fair. She estimates that she earns $

-BARSIC- [3]

Subtracting 10x from the given equation gives
120 = 15x
Then dividing by 15 gives
8 = x

Zorah will have to play 8 hours in order to break even (cover her expenses exactly).

8 0

3 years ago

Read 2 more answers

Find the area and the circumference of a circle with radius 7 cm.

natka813 [3]

$answers \\ area = 153.86 \: {cm}^{2} \\ circumference = 43.96 \: cm \\ \\ solution \\ radius = 7cm \\ area \: of \: circle = \pi {r}^{2} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \: 3.14 \times {7}^{2} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 3.14 \times 49 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 153.86 \: {cm}^{2} \\ circumference \: of \: circle = 2\pi \: r \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 2 \times 3.14 \times 7 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 43.96 \: cm \\ hope \: it \: helps \\ good \: luck \: on \: you r \: assignment$