Answer:
1) 
2) 
Step-by-step explanation:
1)
Subtract 15 from both sides
Divide both sides by 2
this shows that 10 is the right answer
2)
Add 3 to both sides
Divide both sides by 7
this shows that 3 is the right answer
Hope this helps
Answer:
40 cm²
Step-by-step explanation:
Given the ratio of radii = a : b , then
ratio of areas = a² : b²
Here ratio of radii = 1 : 2
ratio of areas = 1² : 2² = 1 : 4
Thus
surface area of large sphere = 4 × 10 = 40 cm²
Answer:
If we are working in a coordinate plane where the endpoints has the coordinates (x1,y1) and (x2,y2) then the midpoint coordinates is found by using the following formula:
midpoint=(x1+x22,y1+y22)
Step-by-step explanation:
Answer: A ratio compares two numbers or two quantities. The two numbers being compared are called terms. ... A rate is a special ratio that compares two quantities that have different units of measure. If the second term in a rate is 1, the ratio is called a unit rate.
Step-by-step explanation:
A ratio compares two numbers or two quantities. The two numbers being compared are called terms. ... A rate is a special ratio that compares two quantities that have different units of measure. If the second term in a rate is 1, the ratio is called a unit rate.
Answer:
23.0625 or 23 13/200
Step-by-step explanation:
97 1/2 - 74 7/16 = 23.065 or 23 13/200
Fun fact: The heaviest salmon caught is actually 97 pounds!
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