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svp [43]
2 years ago
10

Sarah and her friends are baking cookies for a bake sale. They have been cooking at a constant rate for a week. By the seventh d

ay, they had made 210 chocolate, vanilla, and snickerdoodle cookies.(a) What is the unit of rate for Sarah and her friends baking cookies?
Mathematics
1 answer:
ryzh [129]2 years ago
3 0

Answer:

42 cookies.

Step-by-step explanation:

I divided 210 by 5 to get this.

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Is 7/8 a rational number
ohaa [14]

Answer:

true 7/8 is a rational number

6 0
3 years ago
The sum of the digits of a certain two-digit number is 7. Reversing its digits increases the number by 9. What is the number? wr
dimaraw [331]
Xy is the number

A) x + y = 7
B) 10y + x = 10x + y + 9
collecting terms of equation B
B) -9x + 9y = 9
multiplying A) by 9
A) 9x + 9y = 63  then adding it to equation B)
B) -9x + 9y = 9
18y = 72
y = 4
x = 3

The number is 34


4 0
3 years ago
How many litres of milk can be put in six hemispherical bowl each of diameter 35cm​
Lesechka [4]

Answer:

Approximately 67.348 litres can be put in six hemispherical bowl with a diameter of 35 centimetres.

Step-by-step explanation:

The volume of a hemisphere (V), measured in cubic centimetres, is obtained from this formula:

V = \frac{2\pi}{3}\cdot R^{3}

Where R is the radius of the hemisphere, measured in centimetres.

We know that radius is the half of the diameter (D), measured in centimetres, then:

R = 0.5\cdot D

(D = 35\,cm)

R = 0.5\cdot (35\,cm)

R = 17.5\,cm

Now, we get the volume of each hemispherical bowl:

V = \frac{2\pi}{3} \cdot (17.5\,cm)^{3}

V \approx 11224.649\,cm^{3}

The total volume of six hemispherical bowl is:

V_{T} = 6\cdot V

V_{T}= 6\cdot (11224.649\,cm^{3})

V_{T} = 67347.894\,cm^{3}

From Physics we know that 1 litre equals 1000 cubic centimetres. Then:

V_{T} = 67.348\,L

Approximately 67.348 litres can be put in six hemispherical bowl with a diameter of 35 centimetres.

3 0
3 years ago
I need a bit of help! I can't figure out how to convert this. Thank you so much!
Kitty [74]
7.72 Lbs/week

Hope this helps :) 
5 0
3 years ago
5-6(a+2)=7+a<br> What is a
iogann1982 [59]
Remmeber you can do anything to an equaiton as long as you do it to btoh sides
5-6(a+2)=7+a
distribute
5-6a-12=7+a
add like terms
-6a-7=7+a
add 6a both sides
-7=7+7a
minus 7 both sides
-14=7a
divide by 7
-2=a
a=-2
5 0
3 years ago
Read 2 more answers
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