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Dmitrij [34]
3 years ago
7

11 Emilio makes metal fences.

Mathematics
1 answer:
denis23 [38]3 years ago
5 0

Answer:

Step-by-step explanation:   7  3  13  31

3 × 1.8      long pieces                                  Calculate the ratios

2 × 1.44    9  tall vertical piece                     1.44 / 9  = x / 9      x = 1.44

5 × ___    8  medium vertical pieces          1.44 / 9  = x / 8      x = 1.28

6 × ___    7  short vertical pieces                1.44 / 9  = x / 7       x = 1.12

3 × 1.8      long pieces

2 × 1.44    9  tall vertical piece                     1.44 / 9  = x / 9      x = 1.44

5 × 1.28    8  medium vertical pieces          1.44 / 9  = x / 8      x = 1.28

6 × 1.12    7  short vertical pieces                1.44 / 9  = x / 7       x = 1.12

3 × 1.8      long pieces                                 =  5.4 m

2 × 1.44    9  tall vertical piece                   =  2.88  m

5 × 1.28    8  medium vertical pieces        =  6.4 m

6 × 1.12    7  short vertical pieces              =   6.72 m                  

                                                Total           =  21.4  m

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What is the midpoint of (1,-1) and (4,-6)
Andreas93 [3]

Answer:

(5/2, -7/2)

Step-by-step explanation:

The midpoint is the average value of each coordinate

(1+4)/2 , (-1-6)/2

3 0
3 years ago
Which of the following expressions represents the phrase "six added to five times a number"?
oksano4ka [1.4K]

Answer:

6+5x

Step-by-step explanation:

six plus five times a number

6       +    5      ( x)

6+5x

hope this helps!!!

8 0
3 years ago
What is the length of MN?<br><br> Round to the nearest tenth of a unit.<br><br> ??? Units
sesenic [268]

Answer:

  8.5

Step-by-step explanation:

The length of a segment can be found from its end coordinates by using the distance formula:

  d = √((x2 -x1)² +(y2 -y1)²)

  d = √((8 -2)² +(4 -(-2))²) = √(6² +6²) = √72

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The length of MN is about 8.5 units.

8 0
2 years ago
Use the chart below to answer the following questions...
Scilla [17]

a) Smith family spend  \$11208 per year to raise their child from 5 to 18 years old.

b) If the family decides to send their child to a 4-year public college, they will spend \$7500 per year

c) Valnez family will be pay \$12517 per year to raise the child from birth to 18 years old

d) \$15714 is the cost per year of raising a child from birth to 18 years old, and paying for 4 years of private college

Step-by-step explanation:

Part a) How much will the Smith family spend per year to raise their child from 5 to 18 years old? Round to the nearest dollar.

The cost from 5 to 18 years old is $145,700

Per year cost will be:

Divide the total amount by the number of years from 5 to 18 years. i.e 18-5 = 13 years

Cost per year: \frac{145700}{13}

Cost per year:\$11208

So, Smith family spend  \$11208 per year to raise their child from 5 to 18 years old.

Part b) If the family decides to send their child to a 4-year public college, how much will they spend per year?

The cost of 4 year Public College $30,000

Cost per year: \frac{30000}{4}

Cost per year: \$7500

So, If the family decides to send their child to a 4-year public college, they will spend \$7500 per year

Part c) How much will the Valnez family pay per year to raise the child from birth to 18 years old

Cost from Birth to 5 years old $79,600

Cost from 5 to 18 years old $145,700

Total\,\,cost = \$79,600+\$145,700\\Total\,\,cost =\$225300

Total years: 18

Cost per year: \frac{225300}{18}

Cost per year: \$12517

Valnez family will be pay \$12517 per year to raise the child from birth to 18 years old

Part d) What is the cost per year of raising a child from birth to 18 years old, and paying for 4 years of private college? Round to the nearest dollar.

From birth to 18 years (found in part c)

Cost from birth to 18 years: $225300

Cost of 4-year Private College: $120,400

Total Cost: \$225300+\$120,400

Total Cost: \$345700

Total years: 18+4 = 22

Cost per year: \frac{345700}{22}

Cost per year: \$15714

\$15714 is the cost per year of raising a child from birth to 18 years old, and paying for 4 years of private college

4 0
3 years ago
Tammy saved nickels and pennies in a jar. The ratio of nickels to pennies was 2 to 5. If there were 70 nickels in the jar, how m
forsale [732]
I also need help with this.
6 0
3 years ago
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