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3 years ago

I need some help plz!

1 answer:

4 0

2:5
4:10
6:15
Because they give you thee base ratio, you can see that 5 x 2 = 10
so 2 x 2 = 10 which makes an equivalent ratio.

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Evaluate the expressions when x=1.8 and y=4

valina [46]

Answer:

1. 21.6

2. 54

3.16.22

Step-by-step explanation:

1. 3(1.8)(4)

2. 7.5(1.8)(4)

3. (1.4)(4) + (5.9)(1.8)

6 0

3 years ago

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Of the 16 people attending a seminar, 2 have blond hair.

pentagon [3]

Answer:

1/8

Step-by-step explanation:

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3 years ago

Nancy’s nut store sells peanuts for $2 per pound and cashews for $10 per pound. The store sells a peanut - cashew mixture for $7

Gelneren [198K]

9514 1404 393

Answer:

25 pounds cashews
15 pounds peanuts

Step-by-step explanation:

Let c represent the number of pounds of cashews in the mix. Then 40-c is the number of pounds of peanuts. The total cost of the mix is ...

10c +2(40 -c) = 7(40)

8c +80 = 280 . . . . simplify

c +10 = 35 . . . . . . . divide by 8

c = 25 . . . . . . . . . . subtract 10

40-c = 40-25 = 15 . . . . pounds of peanuts

25 pounds of cashews and 15 pounds of peanuts should be used in the mix.

5 0

3 years ago

Madison wants to make cookies for her little sisters birthday party. She is cutting a roll of cookie dough into pieces that are

Readme [11.4K]

If the roll is 13 inches long and Madison is cutting the dough into 1/2 inch thick slices, then she will have 26 cookies. Cross multiply 1/2 and 13/1.

8 0

4 years ago

a school debate team has 4 girls and 6 boys. a total of 4 of the team members will be chosen to participate in the district deba

alexgriva [62]

The correct question is:
What is the probability that 2 girls and 2 boys will be selected?

Solution:
Total number of students = 10
Ways to select a team of 4 students = 10C4 = 210

2 Boys can be selected from 6 boys in ways = 6C2 = 15
2 Girls can be selected from 4 girls in ways = 4C2 = 6

Number of ways to select 2 boys and 2 girls = 15 x 6 = 90

Probability of choosing 2 boys and 2 girls = 90/210 = 3/7

Thus, if 4 team members are selected, the probability of choosing 2 boys and 2 girls will be 3/7

3 0

3 years ago

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