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3 years ago

Write an equivalent expression for n times a using only addition

1 answer:

8 0

Whenever you multiply something, you just add it to itself that many times.

ex) 7 × 4 = 7 + 7 + 7 + 7.

Thus n × a = n + n + n + n....a times.

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A fruit stand has 5 bags of apples with 8 apples in each bag if there are 3 more aples on the shelf next to the bags how many to

trapecia [35]

Answer:

Step-by-step explanation:

So if there are 5 bags which each have 8 apples in them and we need to find out how many apples there are all we have to do is multiply 8 x 5 = 40

But there are 3 more apples off to the side so we just take 40 and add 3 to it.

40 + 3 = 43

5 0

3 years ago

Tina ordered a pizza for lunch. The pizza is round and has a radius of 8 inches. Tina only ate 13 of the pizza and took home the

Alex Ar [27]

Correction

brainly.com/question/15712098

Answer:

$67.02\ in^2$

Step-by-step explanation:

-We find the surface area of the formula as follows:

$A=\pi r^2, \ \ r=radius=8\ in\\\\=\pi \times 8^2\\\\=201.06\ in^2$

#We then find the area of the remaining fraction if she only ate one third:

$Eaten=\frac{1}{3}\times Area\\\\=\frac{1}{3}\times 201.06\ in^2\\\\=67.02\ in^2$

Hence, Tina ate $67.02\ in^2$ of the pizza.

3 0

3 years ago

Two sides of an acute triangle measure 5 inches and 8 inches. The length of the longest side is unknown.

nordsb [41]

The greatest whole possible whole number length of the unknown side is 9 inches

Solution:

Two sides of an acute triangle measure 5 inches and 8 inches

The length of the longest side is unknown

We have to find the length of unknown side

The longest side of any triangle is a hypotenuse

For a acute triangle we know:

If c is the longest side of a acute triangle, a and b are other two sides of a acute triangle then the condition that relates these three sides are given as:

$c^2$

Here in this sum,

a = 5 inches

b = 8 inches

c = ?

Substituting we get,

$c^2< 5^2+8^2\\\\c^2 < 25 + 64\\\\c^2 < 89\\\\c < 9.4$

On rounding to nearest whole number,

c < 9

Hence, to the greatest whole possible whole number length of the unknown side is 9 inches

8 0

3 years ago

Read 2 more answers

Find the perimeter of the polygon. Assume that lines which appear to be tangent are tangent. Round to the nearest tenth if neces

kherson [118]

Answer:

$P=53.6\ units$

Step-by-step explanation:

we know that

The Two-Tangent Theorem states that if two tangent segments are drawn to one circle from the same external point, then they are congruent

Applying the Two-Tangent Theorem at each vertex of the triangle

The perimeter of the triangle is equal to

$P=2(7.8)+2(8)+2(11)=53.6\ units$

6 0

3 years ago

What is the surface area of a rectangular prisim with dimensions 5ft, 6ft, and 7ft.

djyliett [7]

Ok the formula for this is 2(lw +hw+hL)

2(30+35+42)=2(107)=214 square feet

8 0

3 years ago

Read 2 more answers