To find the best estimate for x, we need to isolate x on one side of the equation.
Start by subtracting 902 from both sides of the equation:
-2x + 902 - 902 = 1,518 - 902
Simplifying, we get:
-2x = 616
To solve for x, divide both sides of the equation by -2:
-2x/ -2 = 616/ -2
Simplifying further, we get:
x = -308
Therefore, the best estimate for x is -300, which is closest to the calculated value of -308.
So, the correct answer is:
−300
Which of the following answers gives the best estimate for x given the following equation?
−2x+902=1,518
(1 point)
Responses
−300
negative 300
600
600
300
300
−600
9 answers
There are three petri dishes in a laboratory. The first one contains 22,340 cells, the second contains 43,560 cells, and the last dish contains 36,612 cells. Approximately how many cells are there in total?(1 point)
Responses
1,000,000
1,000,000
100,000
100,000
150,000
150,000
10,000
10,000
Responses
1,000,000
1,000,000
100,000
100,000
150,000
150,000
10,000
10,000
To find the approximate total number of cells, we can add up the number of cells in each petri dish.
22,340 + 43,560 + 36,612 = 102,512
Therefore, the approximate total number of cells is 102,512.
So, the correct answer is:
100,000
22,340 + 43,560 + 36,612 = 102,512
Therefore, the approximate total number of cells is 102,512.
So, the correct answer is:
100,000
Which of the following answers gives the best estimate for x given the following equation?
x/50−94=189
(1 point)
Responses
150
150
15,000
15,000
150,000
150,000
1,500
x/50−94=189
(1 point)
Responses
150
150
15,000
15,000
150,000
150,000
1,500
To find the best estimate for x, we need to isolate x on one side of the equation.
Start by adding 94 to both sides of the equation:
x/50 - 94 + 94 = 189 + 94
Simplifying, we get:
x/50 = 283
To solve for x, multiply both sides of the equation by 50:
50 * (x/50) = 283 * 50
Simplifying further, we get:
x = 14,150
Therefore, the best estimate for x is 14,150, which is closest to the calculated value.
So, the correct answer is:
15,000
Start by adding 94 to both sides of the equation:
x/50 - 94 + 94 = 189 + 94
Simplifying, we get:
x/50 = 283
To solve for x, multiply both sides of the equation by 50:
50 * (x/50) = 283 * 50
Simplifying further, we get:
x = 14,150
Therefore, the best estimate for x is 14,150, which is closest to the calculated value.
So, the correct answer is:
15,000
A local taqueria sold 11,321 carne asada tacos, 13,132 chicken tacos, and 8,982 carnitas tacos last year. If each taco was sold for $3.89, which value best estimates their total earnings from tacos?(1 point)
Responses
$90,000
$90,000
$130,000
$130,000
$160,000
$160,000
$33,000
Responses
$90,000
$90,000
$130,000
$130,000
$160,000
$160,000
$33,000
To find the total earnings from tacos, we need to multiply the number of each type of taco sold by the price of each taco and then add them together.
For the carne asada tacos:
11,321 tacos * $3.89 = $44,055.69
For the chicken tacos:
13,132 tacos * $3.89 = $51,008.68
For the carnitas tacos:
8,982 tacos * $3.89 = $34,973.98
Adding these three amounts together gives us the total earnings:
$44,055.69 + $51,008.68 + $34,973.98 = $130,038.35
Therefore, the best estimate for their total earnings from tacos is $130,000, which is closest to the calculated value.
So, the correct answer is:
$130,000
For the carne asada tacos:
11,321 tacos * $3.89 = $44,055.69
For the chicken tacos:
13,132 tacos * $3.89 = $51,008.68
For the carnitas tacos:
8,982 tacos * $3.89 = $34,973.98
Adding these three amounts together gives us the total earnings:
$44,055.69 + $51,008.68 + $34,973.98 = $130,038.35
Therefore, the best estimate for their total earnings from tacos is $130,000, which is closest to the calculated value.
So, the correct answer is:
$130,000
Which of the following answers gives the best estimate for x given the following equation?
21x+1,998=2,243
(1 point)
Responses
1
1
10
10
1,000
1,000
100
21x+1,998=2,243
(1 point)
Responses
1
1
10
10
1,000
1,000
100
To find the best estimate for x, we need to isolate x on one side of the equation.
Start by subtracting 1,998 from both sides of the equation:
21x + 1,998 - 1,998 = 2,243 - 1,998
Simplifying, we get:
21x = 245
To solve for x, divide both sides of the equation by 21:
21x/21 = 245/21
Simplifying further, we get:
x = 11.67
Therefore, the best estimate for x is 10, which is closest to the calculated value of 11.67.
So, the correct answer is:
10
Start by subtracting 1,998 from both sides of the equation:
21x + 1,998 - 1,998 = 2,243 - 1,998
Simplifying, we get:
21x = 245
To solve for x, divide both sides of the equation by 21:
21x/21 = 245/21
Simplifying further, we get:
x = 11.67
Therefore, the best estimate for x is 10, which is closest to the calculated value of 11.67.
So, the correct answer is:
10
1 answer