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netineya [11]
3 years ago
5

Calvin is mixing colored gravel for the bottom of his fish tank. He mixes 12 pounds of blue gravel with 3 pounds of purple grave

l.
How much blue gravel is used per pound of purple gravel?

A.3 pounds
B.4 pounds
c.9 pounds
D.15 pounds
Mathematics
1 answer:
Flura [38]3 years ago
8 0

Answer:

B.4

Step-by-step explanation:

I did 12 divided by 3 = 4

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Last Sunday, the average temperature was 8\%8%8, percent higher than the average temperature two Sundays ago. The average temper
SVETLANKA909090 [29]

Answer: The two answers are 1.08<em>T</em> and (1 + \frac{8}{100} )<em>T</em>.

Step-by-step explanation:

Try multiplying 1.08 times any random number. If you use 5,  1.08 times 5 gives you 5.4.  This makes sense. Solve the other other expression as well and substitute <em>T</em><em> </em> with the SAME number that you used before (5). Hope that helps!

5 0
3 years ago
Whats the surface area?
nadya68 [22]

Answer:

Total Area = 1070 m^2

Step-by-step explanation:

we have 4 different surfaces

  1. the "ramp"
  2. the triangles (2) one for each side
  3. the bottom rectangle
  4. the back rectangle

1. the ramp

A_r = 15\times 30\\\\A_r = 450

2. the triangles

since they are the same we just multiply by two

A_t = \frac{8\times 10}{2}\\\\A_t = \frac{80}{2}\\\\A_t = 40

so the areas of the two triangles is

2A_t = 2(40)\\\\2A_t = 80

3. the bottom rectangle

A_{bot} = 10\times 30\\\\A_{bot} = 300

4. the back rectangle

A_{back}  = 8\times 30\\\\A_{back} = 240

now add them together

A_T=A_r+2A_t+A_{bot}+A_{back}\\\\A_T = 450+80+300+240\\\\A_T = 1070\: m^2

5 0
3 years ago
When it is 11:00 a.m. in Riyadh, it is 4:00 p.m. in Manila. If your flight from Riyadh to Manila lasts 11 hours and 40 minutes,
gtnhenbr [62]

Answer:

Step-by-step explanation:

time difference=4 p.m-11:a.m.=5 hrs

Manila 2:a.m Monday=2-5=9:p.m.at Riyadh Sunday

9 :p. m.Sunday-11 hrs 40 minutes=9:20 :a.m. Sunday at Riyadh

5 0
2 years ago
the length and width of a rectangle are 4 feet and 3 feet, respectively. a similar rectangle has a width of 9 feet. what is the
icang [17]

Answer:

4 times 3 similar is 9 it could be something times 9 for the second.

8 0
2 years ago
Compute and compare the side lengths of the two figures. Does this support an argument claiming that they are congruent? What el
Sunny_sXe [5.5K]
We compute for the side lengths using the distance formula √[(x₂-x₁)²+(y₂-y₁)²].

AB = √[(-7--5)²+(4-7)²] = √13
A'B' = √[(-9--7)²+(0-3)²] = √13

BC = √[(-5--3)²+(7-4)²] = √13
B'C' = √[(-7--5)²+(3-0)²] =√13

CD = √[(-3--5)²+(4-1)²] = √13
C'D' = √[(-5--7)²+(0--3)²] = √13

DA = √[(-5--7)²+(1-4)²] = √13
D'A' = √[(-7--9)²+(-3-0)²] = √13

The two polygons are squares with the same side lengths. 

But this is not enough information to support the argument that the two figures are congruent. In order for the two to be congruent, they must satisfy all conditions: 
1. They have the same number of sides.
2. All the corresponding sides have equal length.
3. All the corresponding interior angles have the same measurements.

The third condition was not proven.
6 0
3 years ago
Read 2 more answers
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