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frutty [35]
3 years ago
5

A Number plus it’s half is 21 How to write an equation?

Mathematics
1 answer:
nirvana33 [79]3 years ago
6 0
The number is 14. You can put it in an equation by writing 14 + (14 ÷ 2) = 21
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Classify each pair of angels listed below as adjacent or vertical.
Stolb23 [73]

Answer:

ntersecting lines DA and CE.

To find:

Each pair of adjacent angles and vertical angles.

Solution:

Adjacent angles are in the same straight line.

Pair of adjacent angles:

(1) ∠EBD and ∠DBC

(2) ∠DBC and ∠CBA

(3) ∠CBA and ∠ABE

(4) ∠ABE and ∠EBD

Vertical angles are opposite angles in the same vertex.

Pair of vertical angles:

(1) ∠EBD and ∠CBA

(2) ∠DBC and ∠EBA

5 0
3 years ago
Find the circumference of the circle. Round your answer to the nearest hundredth. Use 3.14 or 22/7 for π.
masya89 [10]

Answer:

131.95

Step-by-step explanation:

C=2πr=2·π·21≈131.94689

8 0
3 years ago
Read 2 more answers
A store has two different sizes of ice cream the smaller container cost 3.87 for 48 ounces the larger container cost 6.42 which
elena-14-01-66 [18.8K]

Consider the complete question is "A store has two different sizes of ice cream on sale this week. The smaller container costs $3.87 for 48 ounces. The larger container costs $6.42 for 128 ounces. which ice cream costs less per ounce?"

Given:

The smaller container costs $3.87 for 48 ounces.

The larger container costs $6.42 for 128 ounces.

To find:

Which ice cream costs less per ounce?

Solution:

We know that

\text{Cost per ounce}=\dfrac{\text{Total cost}}{\text{Number of ounces}}

Using this formula, we get

Per ounce cost of small container =\dfrac{3.87}{48}

                                                         =0.080625

                                                         \approx 0.08

Per ounce cost of larger container =\dfrac{6.42}{128}

                                                         =0.05015625

                                                         \approx 0.05

Since, 0.08 > 0.05 therefore, the per ounce cost of larger container is less.

5 0
3 years ago
What is the solution of the following system?<br> -2x-y=1<br> -4x-2y=-1
Len [333]
Can you please check, if you wrote it down correctly. Cause in this case the answer would be -2= -1. I think that isn’t the solution.
4 0
3 years ago
A tree in Kevin's backyard is 5/8 meters tall. It has been growing for 1 2/5 years. What is the unit rate in meters per year? No
irga5000 [103]

Answer:

o.4464287142 or 0.4

Step-by-step explanation:

The tree is 5/8 meters tall and that's in 1 2/5 years so you would divide them and you get .4464287142

6 0
3 years ago
Read 2 more answers
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