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kupik [55]
3 years ago
13

The average weight of 10 boys is 77.0 pounds. If the

Mathematics
1 answer:
n200080 [17]3 years ago
4 0

Answer:

68 pounds.

Step-by-step explanation:

Find the total weight when there are 10 boys and when there are 9 boys then calculate the difference.

I'll let x = total weight.

\frac{x}{10}=77\\(10)\frac{x}{10}=77(10)\\x=770\\\\ \frac{x}{9}=78\\(9)\frac{x}{9}=78(9)\\x=702\\\\ 770-702=68

Therefore, the youngest boy weighs 68 pounds.

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10. A In the adjoining Figure, ab is perpendicular to bc and ed is to cd while bc=cd . prove i) triangle abc is corresponding to
xxTIMURxx [149]

<u>Part</u><u> </u><u>(</u><u>i</u><u>)</u>

1) AB is perpendicular to BC, ED is perpendicular to CD, BC = CD (given)

2) Angles ABC and CDE are right angles (perpendicular lines form right angles)

3) Angles ABC and CDE are equal (all right angles are equal)

4) Angles ACB and DCE are equal (vertical angles are equal)

5) Triangles ABC and EDC are congruent (ASA)

<u>Part</u><u> </u><u>(</u><u>ii</u><u>)</u>

6) AB = DE (corresponding parts of congruent triangles are equal)

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2 years ago
Find the area under the standard normal distribution curve between z = –2.05 and z = 2.05.
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\mathbb P(-2.05
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3 years ago
At a store, markers are sold in packages of 12 and pens are sold in packages of 8. What is the least amount of markers and pens
liubo4ka [24]

Given:

Markers are sold in packages of 12 and pens are sold in packages of 8.

To find:

Least amount of markers and pens Rick needs to buy to have an equal number of markers and pens

Solution:

To find the least amount of markers and pens, we need to find the LCM of 12 and 8.

Prime factors of 8 and 12 are

8=2\times 2\times 2

12=2\times 2\times 3

To find the LCM, multiply all factors but the common factors are included only once.

LCM(8,12)=2\times 2\times 2\times 3

LCM(8,12)=24

Therefore, the least amount of markers and pens Rick needs to buy to have an equal number of markers and pens is 24.

5 0
4 years ago
If baby potatoes costs 1.62 and if green beans costs 2.54 and vera bought 2.625 pounds of potatoes and 1.5 pounds of green beans
Svetradugi [14.3K]

Vera's change will be $1.94

Baby potatoes= 1.62

Green beans= 2.54

Amount spent on potatoes= 1.62×2.625

= 4.25

Amount spent on beans= 2.54× 1.5

= 3.81

The change can be calculated as follows

= 3.81 + 4.25

= 8.06

10-8.06

= 1.94

Hence the change is $1.94

Read more here

brainly.com/question/2589682?referrer=searchResults

#SPJ1

5 0
2 years ago
A European bond has a par value of 1000 Euros, a coupon rate of 4.5 percent and a yield to maturity of 3.2 percent. The bond has
Katyanochek1 [597]

Answer:

Bond Price​= 1,182.96

Step-by-step explanation:

Giving the following information:

Par value= 1,000

Cuopon= 1,000*0.045= 45

YTM= 3.2%

Number of years (n)= 10

<u>To calculate the price of the bond, we need to use the following formula:</u>

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Bond Price​= 45*{[1 - (1.032^-19)] / 0.032} + [1,000 / (1.032^19)]

Bond Price​= 633.31 + 549.65

Bond Price​= 1,182.96

3 0
3 years ago
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