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2 years ago

Which number is composite 2, 5, 11, 9,

Mathematics

1 answer:

kykrilka [37]2 years ago

4 0

Answer:

Step-by-step explanation:

3*3 =9

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The diagnoal of a rectangle is 25 inches and the width is 15 inches what is the length

Grace [21]

Answer:

20 inches

Step-by-step explanation:

3 0

3 years ago

Solve for y <br>a. 7 cm<br>b. 20 cm<br>c. 14 cm<br>d. 10 cm

Rainbow [258]

Answer:

20 cm

Step-by-step explanation:

We can use ratios to solve

We know x = 7 since they are of equal length

x x+7

----- = -------

10 y

7 7+7

----- = -------

10 y

Using cross products

7y = 14*10

7y = 140

Divide by 7

7y/7 = 140/7

y = 20

7 0

3 years ago

Problem #4:

madreJ [45]

Answer:

Step-by-step explanation:

Prepare closing entireties for the concert hall bond fund

6 0

2 years ago

Read 2 more answers

How do I solve equations with fractions?

ratelena [41]

2y - 3/5 = 1/2

Add 3/5 to both sides.

2y = 1/2 + 3/5

Let's make the two fractions have common denominators.
Multiply 1/2 by 5/5 and 3/5 by 2/2.
1/2 * 5/5 = 5/10
3/5 * 2/2 = 6/10

2y = 5/10 + 6/10

Add the two fractions.

2y = 11/10

Divide both sides by 2.

11/10 ÷ 2
Use the Keep, Change, Flip method.
Keep 11/10, change ÷ to ×, and flip the 2 (reciprocal).
11/10 × 1/2 = 11/20

y = 11/20

4 0

2 years ago

Im confused that's all - If 80% is 75 marks, what is full marks

never [62]

Let the full marks be represented by = x

As given, 80% of x is 75

So,

$\frac{80}{100}*x=75$

x= $80x=7500$

x=93.75

Hence, full marks is 93.75

We can check also- $\frac{80}{100}*93.75$ =75

8 0

2 years ago