1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Delicious77 [7]
2 years ago
15

How many math books and English books did Nicole purchase?

Mathematics
1 answer:
Ksju [112]2 years ago
6 0
Create a system if equations to solve this.

First equation:
25m + 24e = 220

Second equation:
m + e = 9

Then you must solve the second equation for a variable.

Change m + e = 9 to e = 9 - m.

Then substitute (9 - m) for e in the first equation.

So 25m +24e = 220 becomes 25m + 24(9 - m) = 220.

Now you can solve the first equation because the only variable in it is m.

25m + 24(9 - m) = 220 (Original equation)
25m + 216 - 24m = 220 (Distribute)
m + 216 = 220 (Combine like terms)
m = 4 (Simplify)

Now plug in 4 for m in the second equation.

m + e = 9 (Original equation)
(4) + e = 9 (Substitute)
e = 5 (Simplify)

m represents Math Books and e represents English Books, so Nicole purchased 4 Math Books and 5 English Books.
You might be interested in
One week, Jason earned $404.70 at his job when he worked for 19 hours. If he is paid the same hourly wage, how many hours would
tensa zangetsu [6.8K]

Answer:

29 hours

Step-by-step explanation:

If he earned $404.70 per 19 hours, you do 404.70/19 to figure out the amount he earns per hour. 404.7/19 is 21.3. He earns $21.3 per hour. to solve, you find how many times 21.3 goes into 617.7 or 617.7/21.3. That is 29. He needs to work 29 hours to earn $617.70

7 0
2 years ago
Identify the postulates that prove the triangles are congruent.
Nitella [24]

SAS is the right answer!

6 0
3 years ago
The sum of two consecutive even integers is 106. What are the integers?
Kruka [31]

Answer:

The integers are 52 and 54

Step-by-step explanation:

x = first even integer

x + 2 = next integer that is even

x + x + 2 = 106

2x + 2 = 106

2x = 104

x = 52

x + 2 = 54

4 0
1 year ago
Rewrite each expression using the distributive property. Then combine like terms if possible. 2(x+4
Eduardwww [97]

Step-by-step explanation:

Step 1: Multiply the 2 with the X to get 2X.

Step 2: multiply the 2 with the 4 and get 8

Step 3: your answer is 2X+8

7 0
3 years ago
Jordan signed a rental agreement for her condo. After she moved out, the
Tanya [424]
I think it’s b hope it helps
6 0
3 years ago
Read 2 more answers
Other questions:
  • 4. How else can the ratio 4/5 be written?<br> O A.4:5<br> O B.5:4<br> O C.54<br> O D..2
    11·1 answer
  • Ginger color book came with 125 stickers if she putting stickers on each page how many pages of stickers will she have how many
    5·2 answers
  • I have a 2 in the tens place. when you add 18 to me, you get 39. what number am I ?
    12·1 answer
  • The basketball team wants to score 48 points per game this season. They will play a total of 8 games. The team want to score ___
    11·2 answers
  • 88 marbles come in a jar. 4 children share 3 jars equally. How many marbles does each child get?
    5·1 answer
  • jennifer deposited $2500 in her savings account. her account compounds interest continuously at a rate of 6.5%. How long will it
    6·1 answer
  • In the following problem, the ratios are directly proportional. Find the missing variable.
    10·1 answer
  • Can someone please help me with this? Not just answers pleaseee.
    10·1 answer
  • How do you calculate slope from a table?
    9·1 answer
  • Solve please: (8x)(2y)(3z)​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!