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asambeis [7]
2 years ago
8

What is the surface area of this square pyramid?

Mathematics
1 answer:
OLEGan [10]2 years ago
3 0
240cm2 is the answer
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The gardeners at Middleton Place Gardens want to plant a total of 41 white and pink hydrangeas in one flower bed. In another flo
aev [14]

Answer:

The gardeners should buy 45 white hydrangeas and 104 pink hydrangeas.

Step-by-step explanation:

Let the gardeners at Middleton Place Gardens have to buy x numbers of white hydrangeas and y number of pink hydrangeas.

So, x + y = 41 {Given} ........... (1)

Again, for another flower bed they want to plant 108 hydrangeas, where the number of white ones is 2 times that of Middleton Place Gardens and the number of pink ones is 3 times that of Middleton Place Gardens.

So, 2x + 3y = 108 ........ (2)

Now, solving equations (1) and (2) we get,

3y - 2y = 108 - 82 = 26

⇒ y = 26

And from equation (1) we get,

x = 41 - 26 = 15.

So, the total number of white hydrangeas the gardeners have to buy is (x + 2x) = 3x = 3 × 15 = 45.

And the total number of pink hydrangeas the gardeners have to buy is (y + 3y) = 4y = 4 × 26 = 104. (Answer)

7 0
3 years ago
Find the circumference of a circle that has an area of 452.16 square meters. (Use 3.1416 as the value of π.)
boyakko [2]
452.16 = 3.1416 r^2
r^2 = 452.16  /  3.1416
r^2 = 143.93
r = 11.997

C = 2 (3.1416) (12) =75.38 m
3 0
3 years ago
Use the order of operations to find the value of the following expression.
AURORKA [14]
The answer is 95

Work

100 - (2)(8) + 11
100 - 16 + 11
84 + 11
= 95
3 0
2 years ago
Read 2 more answers
Judy gets her car detailed at the car wash. She pays the cashier with a $100 bill and gets $40.60 in change. If the sales tax is
Anna35 [415]

Answer:

The price of having her car detailed before tax = $55

Step-by-step explanation:

She pays the cashier with a $100 bill and gets $40.60 in change.

She paid = $100 - $40.60

= $59.40

Sales tax = 8%

what was the price of having her car detailed before tax?

Let x= price of having her car detailed before tax

8% of x + x = $59.40

(0.08 * x) + x = $59.40

0.08x + x = 59.40

1.08x = 59.40

Divide both sides by 1.08

x = 59.40 / 1.08

x = $55

Therefore, the price of having her car detailed before tax is $55

Check:

8% of $55

= 0.08*55

= $4.40

Tax + price before tax

$4.40 + $55

= $59.40

4 0
3 years ago
Martina is baking bread. She mines 1 3/4 cups of flour váth other ingredients. Then she adds 4 1/2 cups of flour to the mixture.
Lesechka [4]

Answer:

6 \frac{1}{4}

Step-by-step explanation:

First you add the whole numbers 1 + 4 which will be 5

Then you add the fractions. To do that you have to make sure that the denominators are the same (in this case they are not). So you multiply the fraction by a number so the denominators can equal each other.

1 (4) /2 (4) +  3 (2) / 4 (2)

\frac{4}{8} + \frac{6}{8} = \frac{10}{8} = 1 \frac{2}{8} = 1 \frac{1}{4}

*always remember to simplify the fractions

After adding the fractions, you just have to add it to the whole number (5)

5 + 1 \frac{1}{4} = 6 \frac{1}{4}

hope this helps!

3 0
3 years ago
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