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11111nata11111 [884]
3 years ago
6

Jason can dig a constant rate of 7 holes every two hours. How many hours will it take him to dig 21 holes?

Mathematics
2 answers:
Neko [114]3 years ago
7 0

Answer:

6 hours.

Step-by-step explanation:

7x3=21

If he digs 7 holes every 2 hours then multiply 3 by 2, which equals 6.

To make sure this is right you could solve backwards too:

21/7=3

6/2=3

Hope this helps. :)

adell [148]3 years ago
3 0

Answer:

6 hours

Step-by-step explanation:

We know that he can dig 7 holes every two hours. 21 divided by 7 is 3, and 3 x 2 hours equals 6.

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Ahmad just bought a used sailboat with two sails that need replacing. How much sail fabric will Ahmad need if he replaces sail A
ValentinkaMS [17]

Answer:

sail a = 81ft²

sail b base = 12ft

Step-by-step explanation:

question 5:

the measurements for sail A are 18ft(height) and 9ft (base)

the formula to find the the area of a triangle is (b · h) 1/2

(9 · 18) 1/2 = (162) 1/2 = 81

so ahmad will need 81ft² of fabric for sail a

question 6:

we know that the formula to find the area of a triangle is  (b · h) 1/2 = a, since we know the height and the area of the triangle we plug them into the equation to find the measurement of the base.  

(b · 18) 1/2 = 108

\frac{(b . 18) 1/2}{1/2} = 108/ 1/2

(b · 18) = 216

18b  = 216

18b/18 = 216/18

b= 12

check your work:

(12 · 18) 1/2 = 108

(216) 1/2 = 108

108 = 108  true!

the base measurement for sail b is 12ft

hope this helps and have a great day!!

8 0
3 years ago
A basketball player recorded her points for 11 consecutive games. Her points are listed below. 13, 20, 15, 22, 24, 21, 18, 20, 2
Jlenok [28]

Answer:

the answer is 23 on edguniity

Step-by-step explanation:


4 0
3 years ago
Read 2 more answers
Please help i’ll give brainliest
Brrunno [24]

Answer:

45mm^{2}

Step-by-step explanation:

3cm x 1.5cm

3 x 1.5 = ?

3 x 1.5 = 4.5

4.5cm = ?mm

4.5cm= 45 mm

45mm^{2}

Hope this helps!

4 0
3 years ago
The response to a question has three alternatives: A, B, and C. A sample of 120 responses provides 60 A, 12 B, and 48 C. Show th
zimovet [89]

Answer:

CLASS     FREQUENCIES     RELATIVE FREQUENCIES

A                        60                                 0.5

B                        12                                  0.1

C                        48                                 0.4

TOTAL              120                                  1

Step-by-step explanation:

Given that;

the frequencies of there alternatives are;

Frequency A = 60

Frequency B = 12

Frequency C = 48

Total = 60 + 12 + 48 = 120

Now to determine our relative frequency, we divide each frequency by the total sum of the given frequencies;

Relative Frequency A = Frequency A / total = 60 / 120 = 0.5

Relative Frequency B = Frequency B / total = 12 / 120 = 0.1

Relative Frequency C = Frequency C / total = 48 / 120 = 0.4

therefore;

CLASS     FREQUENCIES     RELATIVE FREQUENCIES

A                        60                                 0.5

B                        12                                  0.1

C                        48                                 0.4

TOTAL              120                                  1

5 0
3 years ago
ictor Malaba has a net income of $1,240 per month. If he spends $150 on food, $244 on a car payment, $300 on rent, and $50 on sa
maksim [4K]

He spends 150+244+300+50=744 on the listen items so he he has 496 left to spend.

\frac{496}{1240}=\frac{248*2}{248*5}=\frac{2}{5}

so 40% of his net income.

4 0
3 years ago
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