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2 years ago

The cost of a book is $x what is the expression in terms of x for the number of these books which are bought for $40

Mathematics

2 answers:

Olenka [21]2 years ago

8 0

Answer:

40/x

Step-by-step explanation:

The cost of 1 book is $X.

You bought (?) books for $40.

If you want to know how many books you bought, divide the total cost of books ($40) by the cost of 1 book ($X).

spayn [35]2 years ago

6 0

Answer:

In x dollars,

number of book that can be bought = 1

So, In 1 dollar,

number of books that can be bought = 1/x

Hence in 40 dollars,

number of books that can be bought = 40/x

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Solve for x. hint:half circle.

Romashka [77]

Answer:

$x = 10$

Step-by-step explanation:

Given

The attached circle

Required

Find the measure of x

From the attached image:

$11x + 2$ and $-2 + 7x$ form a semi-circle

So:

$11x + 2 -2 + 7x = 180$

Collect like terms

$11x + 7x = 180+ 2 -2$

$18x = 180$

Solve for x

$x = \frac{180}{18}$

$x = 10$

4 0

2 years ago

-2 + 3n< 28 and 6n - 7 > 17

sveta [45]

Answer:

N< 10 and N>4

Step-by-step explanation:

-2+3n< 28. =. 3n < 30. =. N < 10

+2. +2 ÷3. ÷3

6n - 7 > 17. =. 6n > 24. =. N > 4

+7. +7. ÷ 6. ÷ 6

8 0

3 years ago

How would you calculate the area and perimeter of 3yd 6yd 5yd 10yds

spayn [35]

Okay, start with the smaller square, you know the side length is 3 and that the width is 5, multiply this together:
3 * 5 = 15

That's the smaller left side of this shape, now the bigger side, divide the 10 yards at the bottom by 2 to properly represent the other side then multiply this by the 6 over there.
5 * 6 = 30

Conclusion for Area: After adding the results the answer should be 45.

The perimeter is solely adding all the sides together. You have a 10, two 5's, one 6, and two 3's. Add this together:

10 + 5 + 5 + 6 + 3 + 3 = 32

Conclusion for Perimeter: So the perimeter would be 32.

I hope this helps in someway, have a great rest of your day! ^ ^
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3 0

2 years ago

Ms. Zimmer invested $5000 on a CD for 8 months. She earned $120 interest. What is the rate of the CD?A.3%C.0.3%B.3.6%D.36%

user100 [1]

The rate is 0.3%

5000 x 0.003 = 15
15 x 8 = $120

6 0

2 years ago

Ace in pudge pink cucumbers to earn money to attend Bible college pudge picked 3 pounds for every 4 pounds ace picked if ace pic

hodyreva [135]

Pudge picked 537 pounds of cucumber.

Step-by-step explanation:

Ratio of picking cucumbers,

Pudge to Ace = 3:4

Cucumbers picked by Ace = 716 pounds

Let,

x be the cucumbers picked by pudge.

New ratio of pudge to ace = x:716

Using proportion;

Ratio of pudge to ace :: New ratio of pudge to ace

$3:4::x:716$

Product of mean = Product of extreme

$4*x=3*716\\4x=2148$

Dividing both sides by 4

$\frac{4x}{4}=\frac{2148}{4}\\x=537$

Pudge picked 537 pounds of cucumber.

Keywords: Ratio, proportion

Learn more about proportions at:

#LearnwithBrainly

8 0

3 years ago