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pshichka [43]
3 years ago
14

Let p: A number is greater than 25.

Mathematics
1 answer:
aleksley [76]3 years ago
8 0

Answer:

28 and 32

Step-by-step explanation:

24 is less than 25. 36 and 40 is more than 35

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Plssssss help number 18 and 20​
weqwewe [10]

Answer:

<h2>18).</h2>

Total mass of materials = 4.8kg

<u>For</u><u> </u><u>gravel</u>

55% of the materials are gravel

So we have

55/100 × 4.8 kg

= 2.64kg

<u>For</u><u> </u><u>sand </u>

30% of the materials are sand

We have

30/100 × 4.8

= 1.44kg

<u>For</u><u> </u><u>cement</u>

The remaining materials were cement so we add the masses of both the sand and gravel and subtract it from the total mass

That's

4.8 - (2.64 + 1.44)

4.8 - 4.08

= 0.72 kg

<h2>20). </h2>

She earns £ 800 per week

She receives a raise of 7.5% which is

100 + 7.5 = 107.5%

So we have

107.5 / 100 × £ 800

= £ 860

She now earns £ 860 per week

Hope this helps you

6 0
3 years ago
Read 2 more answers
An automotive manufacturer wants to know the proportion of new car buyers who prefer foreign cars over domestic. Step 1 of 2: Su
AVprozaik [17]

Answer:

0.249 is the required proportion.

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 822

Number of people who preferred foreign cars over domestic, x = 205

We have to find the proportion of new car buyers who prefer foreign cars.

Formula:

\hat{p} = \dfrac{x}{n}

Putting values, we get,

\hat{p} = \dfrac{205}{822}\\\\\hat{p} = 0.249

Thus, 0.249 is the proportion of the new car buyers who preferred foreign over domestic cars..

3 0
3 years ago
If y = 3x and 2x + 4y = 12, then 2x + 4(3x) = 12
Kamila [148]

Answer:

x=6/7 and y=18/7

Step-by-step explanation:

If y = 3x and 2x + 4y = 12,

then substitute the value of y with 3x

2x + 4(3x) = 12

2x+12x=12

14x=12

x=12/14=6/7

y=3x=3*(6/7)=18/7

6 0
3 years ago
Help me please thank you
Law Incorporation [45]

Answer:

y = 120º

Step-by-step explanation:

180 - (33 + 87) = 60

x = 60

180 - 60 = 120

y = 120º

or y = 33 + 87, because the outer angle of one angle equals the other two inner angles.

8 0
3 years ago
Read 2 more answers
Help please! 15 points!
Ivan
It’s 3!! I checked on a calculator :)
5 0
3 years ago
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