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2 years ago

-18 subtracted from - 7

Mathematics

2 answers:

MaRussiya [10]2 years ago

8 0

Answer:

$-7-(-18)\\-7+18\\11$

Step-by-step explanation:

castortr0y [4]2 years ago

5 0

The answer is 11 my friend :)

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How do u simplify 20/70

mash [69]

$\frac{20}{70}=\frac{2*10}{7*10}\to\boxed{\frac{2}{7}}$

7 0

3 years ago

There are 300 apples and peaches for sale at a farmers market. The ratio of the number of apples to the number of peaches is 7:8

Sidana [21]

Answer:

The ratio of the reaming apples to peaches is 3 : 4

Step-by-step explanation:

* Lets solve the problem

- There are 300 apples and peaches

- The ratio of the number of apples to the number of peaches is 7 : 8

- To find the the numbers of apples and peaches add the terms of the

ratio and then divide the total number of apples and peaches by this

sum and then multiply each terms of the ratio by this quotient

∵ The ratio of apples to peaches = 7 : 8

∴ apple : peach : sum

7 : 8 : 15

? : ? : 300

∴ The number of apples = (300 ÷ 15) × 7 = 20 × 7 = 140 apples

∴ The number of peaches = (300 ÷ 15) × 8 = 20 × 8 = 160 peaches

- 50 apples and 40 peaches are sold

∴ The remaining number of apples = 140 - 50 = 90 apples

∴ The remaining numbers of peaches = 160 - 40 = 120 peaches

- To find the ratio simplify the numbers to its simplest form

∵ There are 90 apples and 120 peaches

∴ apple : peach

90 : 120 ⇒ divided both by 10

∴ 9 : 12 ⇒ divide both by 3

∴ 3 : 4

∴ The ratio of the reaming apples to peaches is 3 : 4

4 0

3 years ago

WILL MARK BRAINLY IF CORRECT!

bogdanovich [222]

Answer:

Step-by-step explanation:

The given equation is

$12( - \frac{1}{6}x - \frac{2}{3}y = - 5)$

$5( \frac{2}{5} x + \frac{1}{5} y = - 9)$

When we multiply we obtain the equations:

$- 2x - 8y = - 60$

$2x + y = - 45$

We add both equations to obtain:

$- 7y = - 105$

Divide both sides by -7 to get:

$y = \frac{105}{7} = 15$

6 0

4 years ago

90<-30p+15 how do you solve this

Alenkinab [10]

*To solve an inequality, it's the same as if you were solving an equation: Isolate the desired variable to one side to solve.

Firstly, subtract 15 on both sides: $75$

Next, you are going to divide both sides by -30. Since you are dividing by a negative, you are going to flip the inequality symbol. Your final answer will be: $-\frac{5}{2}>p$ 

3 0

4 years ago

Crater Lake in Oregon is shaped like a circle with a diameter of about 5.5 miles. How far is it around the perimeter of Crater L

Romashka-Z-Leto [24]

It’s a total of 15miles pereimtere have a good day :)

3 0

3 years ago