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3 years ago

Math factors and multiples review urgent need help

Mathematics

2 answers:

lisov135 [29]3 years ago

7 0

Answer:

ok so the total number of cookies bella got is 30+42+18 = 90. so she has 3 boxes. so divide 90 by 3, we get 30. so if we put 30 cookies in each 3 boxes.

Assoli18 [71]3 years ago

4 0

Answer:

Step-by-step explanation:

add 30 then 42 then 18 and divide it in to as many possible

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Barbara drives between Miami, Florida and West Palm Beach, Florida. she drives 45 miles in clear weather and then encounters a t

WINSTONCH [101]

Answer:

Barbara's speed in clear weather is $60mph$ and in the thunderstorm is $38mph$ .

Step-by-step explanation:

Let $v_1$ be the speed and $t_1$ be the time Barbara drives in clear weather, and let $v_2$ be the speed and $t_2$ be the time she drives in the thunderstorm.

Barbara drives 22 mph lower in the thunderstorm than in the clear weather; therefore,

(1). $v_2 = v_1 -22$

Also,

(2). $v_1t_1 = 45miles$

(3). $v_2 t_2 = 57$ ,

and

(4). $t_1+t_2 = 2.25hr$

From equations (2) and (3) we get:

$t_1 = \dfrac{45}{v_1}$

$t_2 =\dfrac{57}{v_2}$

putting these in equation (4) we get:

$\dfrac{45}{v_1}+\dfrac{57}{v_2}=2.25$

and substituting for $v_2$ from equation (1) we get:

$\dfrac{45}{v_1}+\dfrac{57}{v_1-22}=2.25$

This equation can be rewritten as

$2.25v_1^2-151.5v_1+990=0$

which has solutions

$v_1 = 60$

$v_1 = 7.33$

We take the first solution $v_1 =60$ because it gives a positive value for $v_2:$

$v_2 = v_1 -22$

$v_2 = 60 -22\\$

$v_2 = 38$ .

Thus, Barbara's speed in clear weather is $60mph$ and in the thunderstorm is $38mph$ .

4 0

3 years ago

8. Triangle JKL is located at J(4,5) K17, 1) L(1,

Pavlova-9 [17]

Answer:

a bit of a room for the television and then we you too I am really sorry for the television and then we you too I love you too I will be there in about you guys see you tomorrow at 7 in the middle to buy a house in the middle of the night guys see you tomorrow at 7 in the middle of the night

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2 years ago

Three dogs are sitting in a line. Rocky is not last. Coco is in front of the tallest dog. Marley is sitting directly behind Rock

Pachacha [2.7K]

Answer:

The correct answer is down below:

Step-by-step explanation:

Coco is the first dog in line; followed by Rocky who is in the middle from Marley. And Marley is the last dog in line. <em>(use the context clues to find the answer of your question).</em>

1. Coco

2. Rocky

3. Marley

4 0

3 years ago

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Harman [31]

here we have 3X to 5 seventh power in radical form

$3x^{5/7}$