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3 years ago

The sum of two numbers is 40. The second number is 5 less than twice the first number. Let x represent the first number

Mathematics

2 answers:

Katen [24]3 years ago

8 0

Answer:

Step-by-step explanation:

Double 15 x 2 = 30 -5 =25 +original 15 would be 40 answer is 15

GuDViN [60]3 years ago

7 0

The answer would be 25 because your trying to find less of the number

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There are 2 grams of fat in 1 pound of chicken. there are 9 grams of fat in 4.5 pounds of chicken. How many grams of fat would b

kramer

Answer:

There will be 20 grams of fat in 10 pounds of chicken.

Step-by-step explanation:

Based of the pattern you can tell that the Grams of fat will always be double the amount of pounds.

2 grams of fat in 1 pound

9 grams in 4.5 pounds

So:

10 * 2 = Grams of fat

10 * 2 = 20 Grams of fat.

So there will be 20 grams of fat in 10 pounds of chicken.

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4 years ago

Of the 8760 hours in a year, most televisions are on for 2190 hours. What percent is this

Dimas [21]

Answer:

Hello!! Your answer is 25% I think!

Hope this helps!!

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2 years ago

You play a gambling game with a friend in which you roll a die. if a 1 or 2 comes up, you win $9. how much should you lose on an

EleoNora [17]

To make it a fair game you should lose $4.5

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3 years ago

Solve for f, what is f

Nutka1998 [239]

Answer:

f = 1

Step-by-step explanation:

-f + 2 + 4f = 8 - 3f

-f + 4f + 3f = 8 - 2

6f = 6

f = 6/6

f = 1

Hope it helps!!

6 0

3 years ago

Read 2 more answers

in a window display at a flower shop, there are 3 spots for 1 plant each. to fill these 3 spots, adam has 7 plants to select fro

Andrej [43]

Answer: 210

Step-by-step explanation:

We know that the number of combinations of n things taken r at a time is given by :-

$C(n,r)=\dfrac{n!}{r!(n-r)!}$

So, number of ways to select 3 plants out of 7 = $C(7,3)=\dfrac{7!}{3!4!}=\dfrac{7\times6\times5\times4!}{6\times 4!}=7\times5=35$

Also number of ways to arrange them in 3 positions = 3! = 6

Now , total number of arrangements with 1 plant in each spot = (number of ways to select 3 plants out of 7) x (number of ways to arrange them in 3 positions)

= 35 x 6

=210

Hence, required number of ways = 210

5 0

3 years ago