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
Neporo4naja [7]
3 years ago
6

There are 7 boxes stacked on the floor in the math department supply closet. Each box has a height of 10 inches or 8 inches. The

height of the stack of 7 boxes is 5 feet. How many boxes in the stack are 8 inches in height?
Mathematics
1 answer:
Orlov [11]3 years ago
5 0

Answer:

5 of the 7 boxes are 8 inches in height

Step-by-step explanation:

Mathematically;

1 ft = 12 inches

So, 5 ft will measure 5 * 12 = 60 inches

So from what we have ,

We want to combine 8 and 10 inches to give 60 inches total

Let the number of 10 inches be x and the number of 8 inches be y

Mathematically;

x + y = 7 •••••(i)

10x + 8y = 60 ••••(ii)

From equation i, x = 7-y

Put this in equation ii

10(7-y) + 8y = 60

70-10y + 8y = 60

70-60 = 10y-8y

2y = 10

y = 10/2

y = 5

You might be interested in
PLEASE HELP WILL MARK BRAINLIEST
jekas [21]

Answer:

10

Step-by-step explanation:

√81 = 9   (9+9-4*2)

4 * 2 = 8  (9+9-8)

9 + 9 = 18 (18 - 8)

18 - 8 = 10

7 0
3 years ago
Read 2 more answers
Hy it
Over [174]

Answer:

-4

Step-by-step explanation:

i just did it..

7 0
3 years ago
Read 2 more answers
A brother and sister share out their collection of 5000 stamps in the
yaroslaw [1]

Answer:

1875

Step-by-step explanation:

After sharing in the ratio 5:3, the brother has

5000/(5+3) x 5 = 3125

Next, he shares with his friend in the ratio 3:1:1, thus

3125/(3+1+1) x 3 = 1875

7 0
3 years ago
Math 7 Grade 7. Can anyone help me answer these questions?
zaharov [31]
1. What is the opposite of -2?  2

2. When we add opposites together they will always equal = ? 0

This is also known as what ?
additive inverse 

Adding with integers with SAME signs.

-8 + -3 = -11

-12 + -15 = -27

-3 + -9 + -25 = -37
6 0
2 years ago
How do I solve for the quadratic function?
Basile [38]
Aw you put the numbers in so a b c then you solve
3 0
3 years ago
Other questions:
  • HELP HELP ASAP PLZZZZZZZZ I will make u brainliest!!!!!
    5·2 answers
  • If m is the number of magic markers, which variable expression represents the phrase below?
    11·2 answers
  • 1. Stewart had 30 candies in his pocket. If he gave of the
    15·1 answer
  • What is .0487 as a percent
    10·1 answer
  • A metal bar weighs 8.15 ounces. 93 percent of the bar is silver. How many ounces of silver are in the bar? ( round to the neares
    15·2 answers
  • 4.5 + pi (3.14) is
    7·1 answer
  • A bag of potatoes weighs 15 pounds. How many kilograms is this?​
    9·1 answer
  • Im literally about to smash this computer pelase somebody HELPEEPPEPEPEPP
    9·1 answer
  • OMG PLS HELP WITH THIS IM PANICKING OMG I GOT A F IN MATH MY MOM JUST YELLED AT ME IM CRYING PLS HELP WITH THS- PLSS TELL ME
    6·1 answer
  • What is 1/10 x 17/18 PLEASE HURRY
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!