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2 years ago

Kristin bought one cantaloupe for $2. How many cantaloupes can Natalie buy if she has $8?

Mathematics

1 answer:

docker41 [41]2 years ago

5 0

Answer:

Step-by-step explanation:

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Paul can install a 300 hundred square foot hardwood floor in 18 hours. Matt can install the same floor in 22 hours. How long wou

Vadim26 [7]

ANSWER

Paul and Matt will take
$9.9 \: \: hours$
to install the floor working together.

EXPLANATION

First, calculate Paul's rate, which is

$= \frac{1}{18}$

Next, calculate Matt's rate, which is,
$= \frac{1}{22}$

Let us assume that, Paul and Matt took
$x \: hours$
to do the work together.

Then, the rate of working together is,

$= \frac{1}{x}$

Now, add the individual rates and equate to the rate of working together to form an equation that will help us solve for x.

$\frac{1}{18} + \frac{1}{22} = \frac{1}{x}$

Simplify the left hand side

$\frac{11 + 9}{198} = \frac{1}{x}$

$\frac{20}{198} = \frac{1}{x}$

We reciprocate both sides to get (You could have also done cross multiplication).

$\frac{198}{20} = \frac{x}{1}$

$x = 9.9 \: hours$

7 0

3 years ago

Solve the quadratic equation: 3x^2+x-5=0

adell [148]

3x²+x-5=0

a = 3, b = 1, c= -5

-> ∆ ( delta ) = b²-4ac = 61 > 0

-> x1 =( -b+√∆ )÷ 2a =...

x2 = (-b-√∆)÷2a =...

p/s: do your teachers teach you how to use ∆ ( delta ) in maths calculation ? i live in europe and our teachers teach us that way. however, it is a rịght and fast way. you should learn it.

4 0

2 years ago

Measure (7x+1) (2x+1)

Gemiola [76]

Smaller angle = 41°

Larger angle = 139°

Step-by-step explanation:

(7x - 1) + (2x + 1) = 180

7x + 2x - 1 + 1 = 180

9x = 180

x = 20

The measure of the smaller angle is

2x + 1

= 2(20) + 1

= 40 + 1

= 41°

The measure of the larger angle is

7x - 1

= 7(20) - 1

= 140 - 1

= 139°

4 0

2 years ago

Read 2 more answers

A mountain gorilla weighs 135 pounds and is gaining pound each week. An eastern gorilla

Tju [1.3M]

Answer:

njnnnnnnn

Step-by-step explanation:

nmkm

6 0

2 years ago

the ratio of pink marbles to White Marbles Tamara's bag is equal to 1:5 what is the percent of pink marbles

dusya [7]

It would be 20% because if you take 100 times 1/5, which is the same as 100/5, you would get 20, which is 1/5.

8 0

2 years ago

Read 2 more answers