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jarptica [38.1K]

3 years ago

15

I’m stuck on this question please help

1 answer:

Komok [63]3 years ago

5 0

Take the price of pears (£1.30 per kilogram) and multiply it by the amount of pears (7kg). You get 9.1 so now you take the total amount spent (£12.70) and subtract the 9.1 and you get 3.6 now that is the amount you spent on the apples. So take 3.6 and divide it by the amount of apples you got (2kg) you will get 1.8 and that is your overall answer.

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2 x (5+5)<br> Which of the following describes (5 + 5) in the expression above?

Airida [17]

Answer:

2x times 10 im guessing

Step-by-step explanation:

7 0

2 years ago

A new soup recipe contains 33\%33%33, percent less sodium per serving than the old soup recipe. The old soup recipe contained xx

bonufazy [111]

Answer:

0.67x mg

Step-by-step explanation:

expression that could represent the amount of sodium per serving, in milligrams, in the new soup recipe

33% less than the old

old contains x mg

new soup: x - 33%x = x - 33/100x = x - 0.33x = 0.67x mg

67%x mg

6 0

3 years ago

Read 2 more answers

Please help <br> 8x + 6 = 34<br> solve for x

alexgriva [62]

Answer: for the first one x>-6, for the second one x< or equal to 5

Step-by-step explanation:

6 0

2 years ago

Barry made the model to show multiplying a fraction by a fraction. Which multiplication sentence does the model show? A grid wit

barxatty [35]

Given:

Number of rows = 3

Number of columns = 6

Number of square boxes = 18

yellow square boxes in the top two rows = 12

Blue square boxes in the first 5 columns = 15

Number of green boxes (shading overlaps) = 10

To find:

The model to show multiplying a fraction by a fraction.

Solution:

2 rows out of 3 are shaded yellow.

Fraction for yellow = $\dfrac{2}{3}$

5 columns out of 6 are shaded blue.

Faction for blue = $\dfrac{5}{6}$

10 out of 18 squares are green.

Faction for green = $\dfrac{10}{18}=\dfrac{5}{9}$

Now,

$\dfrac{2}{3}\times \dfrac{5}{6}=\dfrac{10}{18}$

$\dfrac{2}{3}\times \dfrac{5}{6}=\dfrac{5}{9}$

Therefore, the correct option is D.

5 0

2 years ago

Automobile mechanics conduct diagnostic tests on 150 randomly selected new cars of particular make and model to determine the ex

Archy [21]

Answer:

$\mathbf{Margin\; of\; error} =$ .0942816

Step-by-step explanation:

Given

Sample size n = 150

Sample proportion ${\widehat{(p)}$ = $\frac{42}{150}$ = 0.28

Confidence interval = $\frac{99}{100}$ = .99

$Margin\; of\; error = z_{\frac{\alpha }{2}}\sqrt{\frac{{\widehat{(p)}}{(1 - \widehat{p})}}{n}}$

$\alpha =$ 1 - confidence interval = 1 - 0.99 = .01

$margin\; of\; error = z_{\frac{.01 }{2}}\sqrt{\frac{(.28) (1 - 0.28)}{150}$

For 99 $\%$ confidence interval

( Z = 2.576 )

$margin\; of\; error = z_{.005 }}\sqrt{\frac{(.28) (1 - 0.28)}{150}$

$margin\; of\; error = 2.576\times\sqrt{\frac{(.28) (1 - 0.28)}{150}$

= .0942816

8 0

2 years ago