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2 years ago

Please help question 1. 1/2 + 2/5 question 2. 5/12 + 7/9

Mathematics

1 answer:

Andrews [41]2 years ago

6 0

Answer:

1. is 0.9 or 9/10. 2. is 43/36 or 1.19

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The bakery shop purchased 7 2/10 pounds of sugar and 7 5/10 pounds of flour. How much sugar and flour did they purchase in all?

gizmo_the_mogwai [7]

Answer:

Sugar = 1-2/5 pounds, Flour = 3-1/2 pounds

Together = 5-9/10 pounds

Step-by-step explanation:

sugar = 7(2/10)

flour = 7(5/10)

sugar + flour = 7(2/10) + 7(5/10)

sugar = 14/10 or 1-2/5 pounds

flour = 35/10 or 3-1/2 pounds

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2 years ago

#8: Linda is saving for retirement. She invest $12,000 in a retirement fund

mestny [16]

Answer:

12000(1+.04)^x

Step-by-step explanation:

12000(1+.04)^x

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2 years ago

A manufacturer of banana chips would like to know whether its bag filling machine works correctly at the 436.0 gram setting. It

Vilka [71]

Answer:

We conclude that the machine is under filling the bags.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 436.0 gram

Sample mean, $\bar{x}$ = 429.0 grams

Sample size, n = 40

Alpha, α = 0.05

Population standard deviation, σ = 23.0 grams

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 436.0\text{ grams}\\H_A: \mu < 436.0\text{ grams}$

We use one-tailed(left) z test to perform this hypothesis.

Formula:

$z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

Putting all the values, we have

$z_{stat} = \displaystyle\frac{429 - 436}{\frac{23}{\sqrt{40}} } = -1.92$

Now, $z_{critical} \text{ at 0.05 level of significance } = -1.64$

Since,

$z_{stat} < z_{critical}$

We reject the null hypothesis and accept the alternate hypothesis. Thus, we conclude that the machine is under filling the bags.

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3 years ago

What are the factors of 21

sweet-ann [11.9K]

Answer:

21: 3and 7 factors

54: 6and 9 factors

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3 years ago

Benjamin took a taxi from his house to the airport. The taxi company charged a pick-up fee of $2.60 plus $3 per mile. The total

Alina [70]

Answer: STOP CHEATING cheater... ok I am nice and here’s answer

74.60=3x+2.60

74.60-2.60=72

72/3=24

x=24

the taxi ride was 24 miles

Step-by-step explanation: but please stop stealing points and saying they are cheaters they just don’t know the answer so they need help

4 0

2 years ago