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Jlenok [28]
3 years ago
5

Subtract 5 from me then add 2. If you subtract 10 and then add 3, you get 15. What number am I

Mathematics
1 answer:
pshichka [43]3 years ago
7 0

Answer:

You are 25

Step-by-step explanation:

This problem is a word problem that requires algebra notation, actually, we are meant to convert this word problem to mathematical expression then solve.

We proceed in a stepwise manner

let say what I have is x

1. Subtract 5 from me

  (x-5)

2. Then add 2

    (x-5)+2

3.  If you subtract 10

      (x-5)+2-10

4.  And then add 3

    (x-5)+2-10+3

5.  you get 15

   (x-5)+2-10+3=15

what am I is the question we need to answer, we do this by solving for x

x-5+2-10+3=15

x-15+5=15

x-10=15

x=15+10

x=25

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Which type of triangle has three sides that are the same length?
Rainbow [258]

Answer:

an equilateral triangle

5 0
3 years ago
Andrea has a goal of running at least 50 miles this month. She has already run 7 miles. How many miles does Andrea need to run e
Nuetrik [128]

Answer:

At least 1.72 miles per day.

Step-by-step explanation:

Given: Goal of running is at least 50 miles in a month.

           Andrea have already run 7 miles.

           Days left in the month is 25.

As given, Andrea have already run 7 miles.

∴ Andrea need to run this month= 50\ miles - 7\ miles= 43\ miles

Days remaining this month is 25.

Now, finding miles need to run each day to meet her goal.

Miles need to run each day= \frac{remaining\ miles}{remaining\ days}

⇒ Miles need to run each day= \frac{43}{25} = 1.72\ miles

∴ Andrea need to run at least 1.72 miles to meet her goal this month.

           

8 0
3 years ago
A. 5°<br>B. 35°<br>C. 31°<br>D. 7°​
MrRissso [65]

Answer:

(2x +30) and (3x -5)  (they're opposite to eachother, so they're equal)

2x + 30 = 3x - 5 (set them equal to eachother, then subtract 3x from both side)

-1x = -35 (divide both sides by -1 to isolate x)

x = 35 or B (this is your answer)

Step-by-step explanation:

I hope this helps :))

3 0
3 years ago
Delaney would like to make a 5 lb nut mixture that is 60% peanuts and 40% almonds. She has several pounds of peanuts and several
Alchen [17]

Answer:

a) The system that models the situation is:

p + 0.2m = 3

p + m = 5

b) The solution of the system is:

m = 2.5

p = 2.5

Step-by-step explanat:

It is desired to obtain 5 pounds of a mixture containing 40% peanuts and 60% almonds.

It has a mixture of 20% peanuts and 80% almonds.

p: number of pounds of peanuts

m = amount of mixture

The equation that represents the amount of peanut and mixture that is needed is:

p + m = 5 pounds

m = 5-p (i)

The amount of peanut in total that the mixture should have is:

p + 0.2m = 0.6 (5)

p + 0.2m = 3 (ii)

a) The system that models the situation is:

p + 0.2m = 3

p + m = 5

Now we substitute (i) in (ii) and clear p.

p + 0.2 (5-p) = 3

p-0.2p = 2

p = 2.5 pounds

Now we find m

m = 5 - 2.5

m = 2.5 pounds

b) The solution of the system is:

m = 2.5

p = 2.5

7 0
3 years ago
4<br> It takes Joaquin hour to hike mile. What is Joaquin’s unit rate, in miles per hour?
torisob [31]
He is walking 1 mile/hour. If it takes him one hour to hike a mile then he is going one mile and hour.

Hope that helps.
4 0
3 years ago
Read 2 more answers
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