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3 years ago

Estimate. Then find the product.

Mathematics

1 answer:

34kurt3 years ago

4 0

Based on the example given, I'm guessing you're supposed to round to the nearest thousand, so that's what I'll do.

2. Round 5339 to 5000, multiply by 6 to get the estimate of 30,000.

3. Round $879 to $1000, multiply by 8 to get the estimate of $8000.

4. Round 3182 to 3000, multiply by 5 to get the estimate of 15,000.

5. Round 4616 to 5000, multiply by 3 to get the estimate of 15,000.

6. Round $2854 to $3000, multiply by 9 to get the estimate of $27,000.

7. Round 7500 to 8000, multiply by 2 to get the estimate of 16,000.

8. Round 948 to 1000, multiply by 7 to get the estimate of 7000.

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Helpity helpityhelpity help

Marizza181 [45]

a) 24% said they wanted to learn french.

To find total number of students surveyed divide the number of students that want to learn French by the percentage:

12 / 0.24 = 50

There were 50 students surveyed.

b) 36% wanted to learn Spanish, multiply 50 by 36%

50 * 0.36 = 18

18 students wanted to learn Spanish.

7 0

3 years ago

Read 2 more answers

A quadrilateral has two angles that measure 222° and 81°. The other two angles are in a ratio of 6:13. What are the measures of

hram777 [196]

$\sf\huge\underline{\star Solution:-}$

$\rightarrow$ <u>Ratio of two angles are 6:13.</u>

So, let the one angle be $\sf{6x}$ and another be $\sf{13x.}$

As we know that,

Sum of all interior angles of a quadrilateral = $\sf\pink{360°.}$

So let's sum up the given angles,

$\rightarrow$ $\sf{222°+81°+6x+13x \:=\: 360°}$

$\rightarrow$ $\sf{303+19x \:=\: 360°}$

$\rightarrow$ $\sf{19x \:=\: 360-303}$

$\rightarrow$ $\sf{19x \:=\: 57}$

$\rightarrow$ $\sf{x \:=\: \frac{19}{57}}$

$\rightarrow$ $\sf{x \:=\: 3}$

Hence, $\sf{x \:=\: 3}$

So, First angle $\sf{= \:6x\: = \:6×3 \:=}$ $\sf\purple{18°.}$

Second angle $\sf{= \:13x\: = \:13×3 \:=}$ $\sf\purple{39°.}$

_________________________________

Hope it helps you:)

3 0

2 years ago

A survey asks 1000 workers has the economy forced you to reduce the amount of vacation

Leto [7]

Answer:

Where's the question?

Step-by-step explanation:

7 0

3 years ago

How many ways can a person toss a coin 13 times so that the number of heads is between 7 and 10 inclusive?

maks197457 [2]

Answer:

4004

Step-by-step explanation:

The number of combinations of choosing r objects from a group of n is nCr.

So the number of ways to get 7, 8, 9, or 10 heads from 13 coin tosses is:

₁₃C₇ + ₁₃C₈ + ₁₃C₉ + ₁₃C₁₀

= 1716 + 1287 + 715 + 286

= 4004

3 0

3 years ago

Find the coordinates of the other endpoint when you are given the midpoint (point M) and one of the endpoints (point P)

satela [25.4K]

The known endpoint is P = (-16,0)

Let Q = (x,y) be the other endpoint. It is unknown for now.

Looking at the x coordinates of P and Q, we see that they are -16 and x respectively. Adding these values up gives -16+x. Dividing that result by 2 gives (-16+x)/2. This result is exactly equal to the midpoint x coordinate, which is the x coordinate of M (0).

So we have this equation (-16+x)/2 = 0. Let's solve for x

(-16+x)/2 = 0
2*(-16+x)/2 = 2*0
-16+x = 0
x-16 = 0
x-16+16 = 0+16
x = 16

Therefore the x coordinate of point Q is 16.

------------------------------------

Let's do something similar for the y coordinates.

The y coordinates of P and Q are 0 and y respectively. Add them up and divided by 2, then set the result equal to -16 (y coordinate of midpoint M) getting this equation (0+y)/2 = -16

Solve for y

(0+y)/2 = -16
y/2 = -16
2*y/2 = 2*(-16)
y = -32

The y coordinate of point Q is -32

------------------------------------

The point Q goes from (x,y) to (16, -32)

Final Answer: (16, -32)

3 0

3 years ago