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vesna_86 [32]
2 years ago
7

The fifth-grade teachers at Washington High School are decorating bulletin boards to get

Mathematics
1 answer:
Yuki888 [10]2 years ago
6 0

The teacher will use 3 rolls only to have perfect measurements.

1 yard = 3 feet

4 large bulletin boards are there each needing 9 yards of border.
That means 4 large bulletin boards in total need

9×4 yards of border

= 36 yards of border

= 108 feet of border

Also, there is a small bulletin board that only needs 12 feet border

Hence, in total there is a need for

108 + 12 = 120 feet border.

The border is sold in 40-foot rolls.
Hence, there is a need for 120/40 rolls

i.e. 3 rolls

Hence, the teacher will use 3 rolls only.  

Learn more about measurements here-

brainly.com/question/15658113

#SPJ10

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An isosceles triangle always has three interior angles that measure 60° each.
Nataly [62]

Answer:

False

Step-by-step explanation:

The definition given is that of an equilateral triangle, NOT that of an isosceles triangle. An isosceles triangle has <em>at least</em> two angles that are equal by definiton. They need not be 60 degrees. For example, a triangle with angle measures of 140, 20, and 20 is an isosceles triangle because two of the angles are equal. Hope this helped!

5 0
3 years ago
1
Alona [7]

Soln

here

weight = 30 kg

Force = weight × 10

= 30×10

= 300

Area = cm

= 100/100

= 1

now,

Pressure = Force/Area

= 300/1

= 300 pa.

3 0
2 years ago
The mean of five numbers is 25, what is their sum?
zubka84 [21]

125 is the answer.

A mean of vie numbers is 25. If it is 25, the numbers must be 25. So, since there is 5 of 25, multiply 25 by 5. Then, the answer would be 125.

There is also another way to do it. Set-up your equation.

x/5=25.

Now flip it to make the equation a multiplication problem.

25×5=x

Once you solve the equation, you should get 125 is the answer.

3 0
3 years ago
Mila used the multiplication property to justify the first step in solving an equation. The original equation was x/2+4=10. What
Nookie1986 [14]

Answer: x+8=20

Step-by-step explanation:

Given

Equation is \frac{x}{2}+4=10

Mila uses the first step as multiplication to make the coefficient of x, 1

Mila maybe have multiplied the whole equation by 2 i.e.

\Rightarrow 2\left(\dfrac{x}{2}+4=10\right)\\\\\Rightarrow x+8=20

8 0
3 years ago
The length of a DNA nucleotide building block is about 1 nanometer, or 0.000000001 meters. Fill in the blank to write this numbe
Damm [24]

Answer: 0.1 I might be wrong tho

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
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