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slega [8]
3 years ago
5

Kym used the integer tiles to find the sum of (–3) + 6. The line showed that the answer is negative 3. Which of the following do

es Kym need to do to get the correct answer?
add three more negative tiles
remove the zero pairs
add three more positive tiles
remove three positive tiles
Mathematics
2 answers:
Yuki888 [10]3 years ago
8 0

Answer:

Kai built the bookshelf shown below. The bookshelf is 48 inches tall with a solid board on the back, and EACH shelf measures 18 inches wide by 24 inches long. If Kai wants to paint all the surfaces, including the undersides of both shelfs and the base, as well as both sides of the bookshelf’s back and sides, how many square FEET will he paint?

Step-by-step explanation:

TEA [102]3 years ago
5 0

Answer:

C. remove the zero pairs

Step-by-step explanation:

I just did it

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Are 7 and 42 relatively prime
Iteru [2.4K]
7 is a prime number, 72 is not a prime number.
Hope this helped!:)

8 0
3 years ago
On a map the distance between Juneau and Fairbanks is 5 inches. The approximate distance is 625 miles. The
Maru [420]

Answer:

2437.5 Miles

Step-by-step explanation:

first find how many miles 1 inch is 625/5 = 125

next you multiply 19.5 * 125 = 2437.5 miles

4 0
3 years ago
How many liters each of a 35% acid solution and a 80% acid solution must be used to produce 60 liters of a 65% acid solution? (R
serg [7]

Solving a system of equations we will see that we need to use <u>40 liters of the 80% acid solution</u>, and the other <u>20 liters are of the 35% acid solution</u>.

<h3>How many liters of each solution do we need to use?</h3>

First, we need to define the variables:

  • x = liters of the 35% acid used.
  • y = liters of the 80% acid used.

We know that we want to produce 60 liters of 65% acid, then we have the system of equations:

x + y = 60

x*0.35 + y*0.80 = 60*0.65

(in the second equation we wrote the percentages in decimal form).

To solve this we need to isolate one of the variables in one equation and then replace it in other one, isolating x we get:

x = 60 - y

Replacing that in the other equation:

(60 - y)*0.35 + y*0.80 = 60*0.65

y*(0.80 - 0.35) = 60*(0.65 - 0.35)

y*0.45 = 60*0.30

y = 60*0.30/0.45 = 40

So we need to use <u>40 liters of the 80% acid solution</u>, and the other <u>20 liters are of the 35% acid solution</u>.

If you want to learn more about systems of equations:

brainly.com/question/13729904

#SPJ1

7 0
2 years ago
Write the slope-intercept form of the line with a slope of 2 and a y-intercept of -4. Include your work in your final answer. Ty
kakasveta [241]
Y=mx+b m=slope b=y intercept
y=2x-4
7 0
2 years ago
Read 2 more answers
A snow plough has a 3.2m blade set at an angle of 30 degrees How wide a path will the snow plough clear
snow_tiger [21]

Answer:

1.6m

Step-by-step explanation:

The length of the blade is 3.2m

The angle which the blade makes is 30°

Assuming the path of the blade and the length it covers is a right-angled triangle,

The length of the blade is the hypothenus while the path at which it clears is the opposite of the triangle.

See attached document for better illustration.

Using SOHCAHTOA,

Sinθ = opposite / hypothenus

opposite = x

hypothenus = 3.2

θ = 30°

Sin30 = x / 3.2

X = 3.2sin30

X = 3.2 × 0.5

X = 1.6m

The path which the snow plough clears is 1.6m

6 0
3 years ago
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