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3 years ago

Mathematics of negative

Mathematics

1 answer:

Arlecino [84]3 years ago

6 0

Answer:

The answer is A

Step-by-step explanation:

If you solve the equation, you get x is less than or equal to -2. Since -1 is the only number that doesn't satisfy this inequality, A is the answer.

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A box that measures 5 centimeters by 5 centimeters by 2 centimeters.

love history [14]

Answer: 50 cubic feet

Explanation:

Volume= length•width•height

V = 5ft • 2ft • 5ft = 50

V= 50 cubic feet

5 0

4 years ago

Line is a straight line.

sergiy2304 [10]

Answer:

The answer is D.)

Step-by-step explanation:

Because the question appears to be incomplete, I am working with what i have.

A line is 180* and out of the choices, D.) is the only one that adds up to 180.

I hope this helps :)

5 0

3 years ago

Kelly invested her savings of $4800. she invested part in mutual funds, at 9% per year, and the rest in GIC's, at 10% per year.

Aneli [31]

Answer:

For the 9% she invested $2,300

For the 10% she invested $2,500

Step-by-step explanation:

Let the amount invested be $x and $y in both cases respectively

Since the total invested is $4,800

This means that;

x + y = 4800 ••••••••••••(i)

Now let’s have a look at the interests.

For the 9%

Interest would be 9/100 * amount invested

= 9/100 * x = 9x/100

For the 10%, interest would be

10/100 * y = 10y/100

Adding both will give a total of 457

9x/100 + 10y/100 = 457

multiply through by 100

9x + 10y = 45700 •••••••• (ii)

From equation i, we can write x = 4800 - y

we can substitute this into the second equation

9(4800-y) + 10y = 45700

43200 -9y + 10y = 45,700

43200 + y = 45,700

y = 45,700-43,200 = $2,500

Recall

x = 4800 -y

so x = 4800 -2500 = 2300

5 0

4 years ago

4 + x/7 = 2 plz solve

Fofino [41]

Answer x=-14.

Step-by-step explanation:

4+x/7

4+ -14/7

4+-2

8 0

3 years ago

Read 2 more answers

An item is regularly priced at $21. It is on sale for 15% off the regular price of the item now

Lynna [10]

Answer:

$ 17.85

Step-by-step explanation:

Regular price = $ 21

Reduction = 15% of regular price

$= \frac{15}{100}*21\\\\= 0.15*21\\= 3.15$

= $ 3.15

Price of the item after reduction = 21 - 3.15 = $ 17.85

8 0

3 years ago