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3 years ago

Use a property of equality to solve the equation - 2a/5 = 13/15

Mathematics

1 answer:

vladimir2022 [97]3 years ago

5 0

Answer:

a = -13/6

Step-by-step explanation:

Multiply both sides by the same number (15). This clears out the fractions:

-2a 13

15 -------- = 15 ----------

5 15

Then we have -2a(3) = 13, or

-6a = 13, or

a = -13/6

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A spinner is divided into 3 equal sections shaded blue, green and orange. Brody spins the spinner. If he spins the spinner 300 t

finlep [7]

Answer:

100 spings to make it blue

Step-by-step explanation:

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3 years ago

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A bag contains 8 red marbles, 3 blue marbles, and 1 green marble. Find P(not blue). a. 9 c. One-fourth b. Four-thirds d. three-f

gayaneshka [121]

In order to find the probability of drawing a marble that is NOT BLUE, we must find the ratio of non-blue marbles to the total amount of marbles

Let's count how many marbles total there are first

8 red + 3 blue + 1 green = 12 marbles total

Now, how many marbles are there that ARE NOT BLUE

8 red + 1 green = 9 marbles THAT ARE NOT BLUE

Now let's create a ratio to find a probility

9/12

This can be simplified to 3/4 by taking out the common factor of 3

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3 years ago

Given f(x) = -4x+7 and g(x) =x^3 , choose the expression for (fog)(x)

SOVA2 [1]

Answer:

-4x^3 + 7

Step-by-step explanation:

(fog)(x) ➡ write whole value of g(x) instead of x in the f(x) function

-4 (x^3) +7 ➡ -4x^3 +7

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3 years ago

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A group of tourists spend $168 to rent snorkels and find. A total of 10 snorkels and 12 pairs of fins are rented. Renting a snor

WITCHER [35]

Answer:

Cost to a rent a snorkel $=\$ 12$ , Cost on 10 rent snorkel $=\$ 120$

Step-by-step explanation:

Given,

Tourist spend on rent snorkel and fin= $\$ 168$

10 snorkel and 12 pairs of fin

Let the cost to rent a snorkel be = $\$$ x

and cost of a pair of fin is = $\$$ y

x=3y (given condition)

$10x+12y=168$

$10\times 3y+12y=168$

$30y+12y=168$

$42y=168$

$y=168/42$

$y=4$

Cost of a pair of fin= $y=\$ 4$

$x=3y$

$x=3\times 4$

$x=12$

Cost of rent a snorkel $=\$ 12$

Total cost of a rent snorkel

$=10\times 12$

= $\$ 168$

5 0

3 years ago

Plz help with this I don’t really get it

Greeley [361]

Answer:

Step-by-step explanation:

Associative Property of Multiplication is a(bc) = (ab)c

d is the only one that follows the rule

6 0

3 years ago