Alvin is 5 years younger than elsa. the sum of their ages is 93. what is elsas age
Answers
Answer:
49
Step-by-step explanation:
Given:
Alvin is 5 years younger than Elsa, and the sum of their ages is 93.
- Let x represent Elsa's age, so Alvin's age would be x - 5 because he is 5 years younger.
x + x - 5 = 93
- Add like terms.
2x - 5 = 93
- Add 5 to both sides.
2x = 98
- Divide both sides by 2.
x = 49
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Answers
If the boy grows another 5 inches, he will be 1/2 as tall as his sister. HIs sister is 68 inch tall
Let sister = g, and boy = b
2b + 5 = g
g = 68
Plug in 68 for g
2b + 5 = 68
Isolate the b. Note the equal sign. What you do to one side, you do to the other. Do the opposite of PEMDAS.
first, subtract 5 from both sdies
2b + 5 (-5) = 68 (-5)
2b = 68 - 5
2b = 63
Isolate the b. Divide 2 from both sides
2b/2 = 63/2
b = 63/2
b = 31.5
The boy is 31.5 inches tall
hope this helps
Answer:
The height of boy is 29 inches.
Step-by-step explanation:
Given : If a boy grows 5 inches, he will be one-half as tall as his sister. His sister is 68 inches tall.
To find : How tall is the boy?
Solution :
Let x be the boy's height and y be his sister's height.
We have given, His sister is 68 inches tall i.e. y=68 inches
Now, If a boy grows 5 inches i.e. x+5
then he will be one-half as tall as his sister i.e.
or
We know, y=68 substitute in above equation
Therefore, The height of boy is 29 inches.
The following table displays the price for a package of plums at various stores in a city. The package price is based on the number of plums in each bag.
# of Plums in Package 41, 25, 17, 9.
Price of Package ($) 15.58, 9.50, 6.46, 3.42.
Answers
Answer:
0.38 dollars per plum
Answer:
The rate is about 19 $
Step-by-step explanation:
Answers
Answer:The equivalent ratio of 6:3 is 2:1. To find the equivalent ratio, we divide both terms of the original ratio by the greatest common divisor (GCD) of the two terms.
In this case, the GCD of 6 and 3 is 3. So, we divide both terms by 3:
6 ÷ 3 = 2
3 ÷ 3 = 1
Therefore, the equivalent ratio of 6:3 is 2:1. This means that for every 2 parts of the first quantity, there is 1 part of the second quantity.
For example, if we have 6 apples and we want to find the equivalent number of oranges, we can use the ratio 2:1. So, if we have 6 apples, we would have 3 oranges (since 2 parts of apples is equal to 1 part of oranges).
Remember, when finding equivalent ratios, it is important to divide both terms by the same number to maintain the same ratio relationship.
if A( -3, 8 ) and B( -7, -6 ).
Answers
Answer:
(-5,1)
Step-by-step explanation:
x = (-3+(-7)/2 = -10/2 = -5
y = (8 +(-6)/2 = 2/2 = 1
Answers
Each bird has 1 head. The number of bird heads is B.
The total number of heads of all species is (L + B) = 30
Each lion has 4 feet. The number of lion feet is 4L .
Each bird has 2 feet. The number of bird feet is 2B .
The total number of feet of all species is (4L + 2B) = 100
The system of linear equations is:
L + B = 30
4L + 2B = 100 .