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
Nuetrik [128]
2 years ago
6

Katrina is building a deck. She cuts 3 lengths of wood from a 72-inch board. The first length is 30 3.4 inches. The second lengt

h is 12 1.4 inches. And the third length is 16 1.4 inches. How much of the original board remains after Katrina makes her cuts?
Mathematics
1 answer:
stich3 [128]2 years ago
8 0
Common denominators! 

<span>If you have to add... 3 fractions with 4 as the denominators: </span>
<span>Then you can combine the numerators: </span>

<span>a/c+ b/c = (a+b)/c and a/d + b/d + c/d = (a+b+c)/d </span>

<span>Let's plug in the numbers.</span>

<span>a=3, b=1, c=1, d =4 </span>
<span>3/4 + 1/4 + 1/4 = 5/4 or 1 1/4! </span>

<span>So the equation for the problem: </span>

<span>Lt = L1+ L2 + L3 + L4 or </span>
<span>L4 = Lt - L1 - L2 - L3 Plug in the numbers </span>

<span>L4 ( remains ) = L total, 72 - L1 ( first cut at 30 3/4 ) - L2 ( second cut 12 1/4 ) - L3 ( 16 1/4 ) </span>

<span>So 72 - 30 - 12 - 16 - 3/4 - 1/4 - 1/4 =? </span>
<span>( break this down into simple terms and do it in your head... </span>

<span>72 - 30 = 42, 42 - 21 = 30, 30 - 16 = 14, 14 - 3/4 = 13 1/4 - 1//4 = 13 - 1/4 = 12 3/4!</span>
You might be interested in
Hello!!:) <br> Please help me answer 1-6 will give brainlst &lt;3
SOVA2 [1]

Answer:

1. 1/4

2. -3

3. 3

4. -3/2

5. -2

6. -3/4

Step-by-step explanation:

5 0
2 years ago
Which graph can be used to find the solution(s) to x^2-1=3?
olga2289 [7]

First of all, you need to attach images for this one. Second of all, graph it in desmos and compare. Thirdly, whichever looks like this.


6 0
2 years ago
Read 2 more answers
What is the value of x
motikmotik

Answer:

x = 4

Step-by-step explanation:

<u>All triangles add up to 180 degrees</u>

76 + 17x + 9x = 180

76 + 17x + 9x - 76 = 180 - 76

26x / 26 = 104 / 26

x = 4

Answer:  x = 4

3 0
3 years ago
Write an equation if the line that passes through (0,-3) and (3,3) .
liq [111]

Answer:

y = 2x - 3

Step-by-step explanation:

y = mx + b

m = (y2-y1)/(x2-x1)

m = (3-(-3))/(3-0)

m = 6/3

m = 2

y = mx + b

y = 2x + b

3 = 2(3) + b

3 = 6 + b

b = -3

therefore

y = 2x - 3

6 0
2 years ago
Find the equation of the line containing (3,-2) and (5,5).
Mars2501 [29]

Answer:

y = 3.5x - 12.5

Step-by-step explanation:

First, find the slope using rise over run (y2 - y1 / x2 - x1) with the 2 points:

(-2 - 5) / (3 - 5)

-7/-2

= 3.5

Then, plug the slope and a point into y = mx + b to solve for b:

y = mx + b

5 = 3.5(5) + b

5 = 17.5 + b

-12.5 = b

Plug the slope and the y intercept into the equation y = mx + b

y = 3.5x - 12.5 will be the equation

7 0
3 years ago
Read 2 more answers
Other questions:
  • You randomly choose one chess piece. Without replacing the first piece you choose a second piece. Find the probability of choosi
    8·1 answer
  • Please help show that the following are TRUE.
    9·1 answer
  • Jenson is picking out what to wear to school. He has three clean T-shirts: one white, one red, and one orange. He also has two c
    11·1 answer
  • Prime factor tree of 385
    11·1 answer
  • Can someone help me find the area of the following figure
    11·1 answer
  • What IS 20% of 36.04​
    11·2 answers
  • What is the Perimeter?
    8·1 answer
  • Please help pretty basic question thankyou !
    10·2 answers
  • For her phone service, Lucy pays a monthly fee of $25, and she pays an additional $0.06 per minute of use. The least she has bee
    7·1 answer
  • 8 1/4 divied by d = 2/11 what is d
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!