3 years ago

2. If 40% of a number is 56, what was the original number Can someone help me for this one pls

Mathematics

2 answers:

ziro4ka [17]3 years ago

4 0

Answer:

140

Step-by-step explanation:

evablogger [386]3 years ago

3 0

140 is the answer to this question

You might be interested in

I would like to know what five times less than $69 equals

Nezavi [6.7K]

Six less than five times a number is at least 29.

8 0

3 years ago

A chair is on sale at a price of £20.80. This is a 20% reduction of the normal price what was the price of the chair before the

Vladimir [108]

Answer:

Explanation is in photo

Step-by-step explanation:

8 0

2 years ago

A student has selected 8 books that she likes, but she has money only for 3 books. how many possible selections does she have?

ladessa [460]

Since the order of the books chosen doesn't matter, we use the combination formula to find the number of possible selections. Recall that a combination of k items from a set of n items is given by $nCk= \frac{n!}{k!(n-k)!}$ .

In this problem, n = 8 and k = 3. So the number of possible selections is
$8C3= \frac{8!}{3!(8-3)!}=56$ . Thus the answer is 56.

5 0

3 years ago

Read 2 more answers

how many cubic yards of concrete will be needed to replace a section of sidewalk 150ft long, 5ft wide and 4 inches thick

zepelin [54]

4 inches = 1/3 foot

So the volume of that section is (150ft x 5ft x 1/3 ft) = 250 cubic feet

The whole trick to this question is knowing
how many cubic feet make 1 cubic yard.

1 yard = 3 ft

(1yd x 1 yd x 1yd) = 1 yd³

(3ft x 3ft x 3ft) = (3 ft)³ = (3)³ x (ft)³ = 27 ft³ <===

For the sidewalk project,

250 ft³ = (250 / 27) = 9.26 yard³ .

I think the way concrete contractors operate, they'll
want you to order and pay for 10 cubic yards.

7 0

3 years ago

There are 3,542 books of the same thickness

Luda [366]

Answer:

there will be 11 books on each shelf and 11 left over.

Step-by-step explanation:

3542/321

which is:

11 and 11/321

7 0

3 years ago