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serg [7]
3 years ago
13

What is 2 5/7 + 9 6/21

Mathematics
2 answers:
Vaselesa [24]3 years ago
6 0
Your answer is 4

Hope this helps.
Nana76 [90]3 years ago
5 0
The answer should be 12 because 2 15/21+9 6/21=12

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What is the reason for #2?
NeTakaya

Answer:

I am not sure but i will say C.

Step-by-step explanation:

3 0
2 years ago
Mary needs to order pizza for 18 students. Each student should get 4/7 of a pizza. How many pizzas should Mary order? How much p
Llana [10]

Answer:

11 pizzas, 5/7 left

Step-by-step explanation:

to find out how much pizza is needed, multiply 4/7 by 18 to get 72/7. round up to get 77/7 or 11 pizzas. 77/7 - 72/7= 5/7 so there will be 5/7 left over

3 0
3 years ago
Read 2 more answers
John is making baked goods for a party. He can either make muffins or bread, and he can use blueberries, bananas, apples, or cho
Margarita [4]

The total number of possible choices that John had for making baked goods for the party is 8.

<h3>What is Combination?</h3>

The combination helps us to know the number of ways an object can be arranged without a particular manner. A combination is denoted by 'C'.

^nC_r = \dfrac{n!}{r!(n-r)!}

where,

n is the number of choices available,

r is the choices to be made.

We know that the number of choices with John for his baked goods is only two which are muffins or bread, therefore, the choices of the baked good can be written as ^2C_1.

Also, the number of choices with John for flavors is four which are blueberries, bananas, apples, or chocolate chips, therefore, the choices of the flavor can be written as ^4C_1.

Now, the total possible choices that John had

= The choices of the baked good x The choices of the flavor

=\ ^2C_1 \times ^4C_1\\\\=\ 8

Hence, the total number of possible choices that John had for making baked goods for the party is 8.

Learn more about Combination:

brainly.com/question/11732255

8 0
3 years ago
A rowing team rowing with the current traveled 36 km in 3 h. Rowing against the current, the team rowed 12 km in the same amount
alex41 [277]

Answer:

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Step-by-step explanation:

The downstream speed is ...

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The upstream speed is ...

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__

If b and c represent the speeds of the boat and current, respectively, then we have ...

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Adding these gives ...

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  c = b -4 = 4

The rate of the rowing team in calm water is 8 km/h; the rate of the current is 4 km/h.

6 0
3 years ago
Read 2 more answers
Marcus works at an ice cream shop. He earns $10.50 each hour. Use Marcus’s timesheet for the week to answer the questions.
OLga [1]

Answer: he worked 31 hours and he earned $317.75

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7 0
3 years ago
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