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2 years ago

120÷(18-(20-3(9-5)simplify

Mathematics

1 answer:

Ilya [14]2 years ago

6 0

Answer:

20÷[18-{20-3(4)}]

120÷[18-[20-12]]

120÷[18-8]]

120÷10

Step-by-step explanation:

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Matt and Jim, working together, can weed the garden in 10 hours. Working alone, Jim takes five times as long as Matt. How long d

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Answer:

10x5=50 Hours!

Step-by-step explanation:

All you just got to do is <u>10x5</u> DUH Easy!

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Antonio's toy boat is bobbing in the water under a dock. The vertical distance HHH (in \text{cm}cmstart text, c, m, end text) be

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Answer: Time t = 33.0 seconds

Step-by-step explanation:

Given that the vertical distance H between the dock and the top of the boat's mast t seconds after its first peak is modeled by the function

H(t) = 5cos( 2π/3 t) − 35.5H

Where the maximum vertical distance = 5

At the down position, H(t) = 0

5cos( 2π/3 t) − (35.5/100)H = 0

5cos( 2π/3 t) − 0.355 × 5 =0

5cos( 2π/3 t) − 0.1775 = 0

5cos( 2π/3 t) = 0.1775

cos( 2π/3 t) = 0.1775/5

cos( 2π/3 t) = 0.355

2π/3 t = cos^-1 (0.355)

2π/3 t = 69.2

2πt = 69.2 × 3

2πt = 207.6

t = 207.6/2π

t = 33.0 seconds

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Jorge is making 6 large salads and 4 small salads. Each large salad needs 10 cherry tomatoes and each small salad needs 6 cherry

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60 for the large
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The manufacturer of a refrigerator system for beer kegs produces refrigerators that are supposed to maintain a mean temperature

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Answer:

There is sufficient evidence to support the claim that the mean temperature is different from 45 degrees

Step-by-step explanation:

Given : Claim : The mean temperature of the refrigerators is different from 45 degrees

To Find :Assuming that a hypothesis test of the claim has been conducted and that the conclusion is to reject the null hypothesis, state the conclusion in nontechnical terms.

Solution:

Claim : The mean temperature of the refrigerators is different from 45 degrees

So, Null hypothesis : $H_0:\mu = 45$

Alternate hypothesis : $H_a:\mu \neq 45$

We are given that the conclusion is to reject the null hypothesis.

So, we can say that the claim is true that mean temperature is different from 45 degrees.

There is sufficient evidence to support the claim that the mean temperature is different from 45 degrees

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Which table has a constant of proportionality between Y and X of 3/4

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Answer:

Table A

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The constant of proportionality is the ratio of y to x.

A: 6/8 = 3/4 . . . . this is the table you want

B: 1/4 = 1/4 . . . . . constant is not 3/4

C: values are not proportional

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120÷(18-(20-3(9-5)simplify​

120÷(18-(20-3(9-5)simplify