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2 years ago

Evaluate numerical expression . Be sure to use the order of operations rules.

Mathematics

1 answer:

Burka [1]2 years ago

5 0

$1.5+9\times3$

First multiplication (9 × 3).

$1.5+9\times3=1.5+27$

Than addition. (1.5 + 27)

$1.5+27=\boxed{28.5}$

The result is 28.5

Hope this helps.

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Sally has 16 marbles in her collection. John has only 7 marbles. Sally gives John 8 of her marbles. How much marbles does John h

Sati [7]

Answer:

The answer is 15

Step-by-step explanation:

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2 years ago

when 1760 is divided into 14 equal parts, the remainder is 10. what is the correct way to write the quotient?

ira [324]

Answer:

125 R10

Step-by-step explanation:

You have to do (1760-10)/14=125

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1 year ago

Ari is jogging at an average rate of 2.25 meters per second. Find the time it will take him to jog 270 meters.

Vera_Pavlovna [14]

Answer:

120 seconds/2 minutes

Step-by-step explanation:

divide the distance (270 m) by the rate (2.25 m/s) and you have 270/2.25 = 120 seconds, or 2 minutes.

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2 years ago

Find the greatest common factor of the following monomials: 20a3 and 8a2

dimulka [17.4K]

GCF of given monomials are $4a^2$

Solution:

Given that we have to find the greatest common factor

Given monomials are:

$20a^3 \text{ and } 8a^2$

When we find all the factors of two or more numbers, and some factors are the same, then the largest of those common factors is the Greatest Common Factor

Let us first find the GCF of 20 and 8 and then find GCF of variables and then multiply them together

GCF of 20 and 8:

The factors of 8 are: 1, 2, 4, 8

The factors of 20 are: 1, 2, 4, 5, 10, 20

Then the greatest common factor is 4

$GCF\ of\ a^3 \text{ and } a^2\\\\a^3 = a^2 \times a\\\\a^2 = a^2$

Thus GCF is $a^2$

Therefore GCF of monomials are:

$\text{GCF of } 20a^3 \text{ and } 8a^2 = 4 \times a^2 = 4a^2$

Thus GCF of given monomials are $4a^2$

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2 years ago

Consider the following equation, bh + hr = 25 when solving for h

Eva8 [605]

Answer:

h = $\frac{25}{b+r}$

Step-by-step explanation:

Given

bh + hr = 25 ← factor out h from each term on the left side

h(b + r) = 25 ← divide both sides by (b + r)

h = $\frac{25}{b+r}$

4 0

2 years ago

Evaluate numerical expression . Be sure to use the order of operations rules. ​

Evaluate numerical expression . Be sure to use the order of operations rules.