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Mamont248 [21]
3 years ago
5

Evaluate if a= -21 a/3+a=

Mathematics
2 answers:
ioda3 years ago
8 0
The answer is -28
(sorry if i get this wrong)
zheka24 [161]3 years ago
3 0
-28
-21 divided by 3= -7
-7+-21=-28

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Sarah needs to complete 10,008 hours of guitar practice. How many hours of practice a day should she do to reach her goal in 3 y
avanturin [10]
10008 hours per 3 years is average of 3336 hours per year, or about 9.1 per day.
4 0
3 years ago
A chef at a restaurant uses pounds of butter each day. About how many grams of butter does the chef use each​ day? Use the conve
Vadim26 [7]

Complete question :

A chef at a restaurant uses 12 pounds of butter each day. About how many grams of butter does the chef use each day? use the conversion factors 16 oz/1 lb and 28.35 grams/1oz

Answer:

5,424 grams

Step-by-step explanation:

To convert using the conversion factor :

Number of pounds of butter * (16 oz/1) * (28.35) /1

Hence,

12 * 16oz/ 1 * 28.35/1

(12 * 16 * 28)

= 5,424 grams

7 0
3 years ago
Four universities—1, 2, 3, and 4—are participating in a holiday basketball tournament. In the first round, 1 will play 2 and 3 w
notsponge [240]

Answer:

a) S= (1324

1342

1423

1432

2314

2341

2413

2431

3124

3142

3214

3241

4123

4132

4213

4231)

b) A= (1324

1342

1423

1432)

Step-by-step explanation:

The number of total outcome is given by,

T= 4×2×2×1=16

Listing them we have;

S=

(1324

1342

1423

1432

2314

2341

2413

2431

3124

3142

3214

3241

4123

4132

4213

4231)

b) A= (1324

1342

1423

1432)

7 0
3 years ago
(05.06) A bicycle manufacturing company makes a particular type of bike. Each child bike requires 4 hours to build and 4 hours t
Anestetic [448]

Answer: The company can build 10 child bikes and 12 adult bikes in the week .

Step-by-step explanation:

Let 'c' be the number of child bike and 'a' be the number of adult bike.

According to the problem

The restriction of building time for a week is 4c+6a≤120 hours.........(1)

and the restriction of testing time for a week is 4c+4a≤100 hours...............(2)

Lets check whether company can build c=10 and a=12 bikes in a week by putting this value in (1) and (2)

(1)......4(10)+6(12)=40+72=112≤120 ⇒Restriction of building time is satisfied.

(2)......4(10)+4(12)=40+48=88≤100⇒Restriction of testing time is satisfied.

Hence,  the company can build 10 child bikes and 12 adult bikes in the week,as order is meeting with the restrictions.

4 0
3 years ago
Read 2 more answers
(2y-2)÷x evaluate x=3 and y=4​
Ratling [72]

Answer:

= 2

Step-by-step explanation:

Step 1- Substitute the variables

(2(4)-2)÷3

Step 2- Multiply

(2(4)-2)÷3

Step 3- Subtract

(8-2)÷3

Step 4- Divide

6÷3=2

7 0
3 years ago
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