To find the best estimate for x, we need to solve the equation −2x+902=1,518.
First, we subtract 902 from both sides of the equation:
−2x = 1,518 - 902
−2x = 616
Next, we divide both sides by -2 to solve for x:
x = 616 / -2
x = -308
So, the best estimate for x is -300.
Which of the following answers gives the best estimate for x given the following equation?
−2x+902=1,518
(1 point)
Responses
−600
negative 600
−300
negative 300
600
600
300
13 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
10,000
10,000
100,000
100,000
150,000
Responses
1,000,000
1,000,000
10,000
10,000
100,000
100,000
150,000
To find the approximate total number of cells in the three petri dishes, we need to add the number of cells in each dish.
22,340 + 43,560 + 36,612 = 102,512
Therefore, there are approximately 102,512 cells in total.
22,340 + 43,560 + 36,612 = 102,512
Therefore, there are approximately 102,512 cells in total.
Which of the following answers gives the best estimate for x given the following equation?
x/50−94=189
(1 point)
Responses
150,000
150,000
150
150
15,000
15,000
1,500
x/50−94=189
(1 point)
Responses
150,000
150,000
150
150
15,000
15,000
1,500
To find the best estimate for x, we need to solve the equation x/50 - 94 = 189.
First, we add 94 to both sides of the equation:
x/50 = 189 + 94
x/50 = 283
Next, we multiply both sides by 50 to solve for x:
x = 283 * 50
x = 14,150
So, the best estimate for x is 15,000.
First, we add 94 to both sides of the equation:
x/50 = 189 + 94
x/50 = 283
Next, we multiply both sides by 50 to solve for x:
x = 283 * 50
x = 14,150
So, the best estimate for x 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
$33,000
$33,000
$160,000
$160,000
$130,000
Responses
$90,000
$90,000
$33,000
$33,000
$160,000
$160,000
$130,000
To calculate the total earnings from tacos, we need to multiply the number of each type of taco sold by the price per taco.
The total earnings from carne asada tacos can be found by multiplying 11,321 tacos by $3.89:
11,321 * $3.89 = $44,002.69
The total earnings from chicken tacos can be found by multiplying 13,132 tacos by $3.89:
13,132 * $3.89 = $51,032.48
The total earnings from carnitas tacos can be found by multiplying 8,982 tacos by $3.89:
8,982 * $3.89 = $34,926.98
To find the estimated total earnings from all tacos, we add these three amounts together:
$44,002.69 + $51,032.48 + $34,926.98 = $129,962.15
Therefore, the value that best estimates their total earnings from tacos is $130,000.
The total earnings from carne asada tacos can be found by multiplying 11,321 tacos by $3.89:
11,321 * $3.89 = $44,002.69
The total earnings from chicken tacos can be found by multiplying 13,132 tacos by $3.89:
13,132 * $3.89 = $51,032.48
The total earnings from carnitas tacos can be found by multiplying 8,982 tacos by $3.89:
8,982 * $3.89 = $34,926.98
To find the estimated total earnings from all tacos, we add these three amounts together:
$44,002.69 + $51,032.48 + $34,926.98 = $129,962.15
Therefore, the value that best estimates their total earnings from tacos 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
10
10
1
1
100
100
1,000
21x+1,998=2,243
(1 point)
Responses
10
10
1
1
100
100
1,000
To find the best estimate for x, we need to solve the equation 21x + 1,998 = 2,243.
First, we subtract 1,998 from both sides of the equation:
21x = 2,243 - 1,998
21x = 245
Next, we divide both sides by 21 to solve for x:
x = 245 / 21
x ≈ 11.67
Since we are looking for the best estimate, we can round x to the nearest whole number, which is 12.
So, the best estimate for x is 10.
First, we subtract 1,998 from both sides of the equation:
21x = 2,243 - 1,998
21x = 245
Next, we divide both sides by 21 to solve for x:
x = 245 / 21
x ≈ 11.67
Since we are looking for the best estimate, we can round x to the nearest whole number, which is 12.
So, the best estimate for x is 10.
An internet service provider had a total of 17,156 customers last year. They gained a net of 1,802 customers this year. They hope to reach at least 35,000 customers in ten years. Estimate the number of customers they need to reach their goal.(1 point)
They need approximately
more customers to reach their goal.
They need approximately
more customers to reach their goal.
To estimate the number of customers the internet service provider needs to reach their goal in ten years, we need to add the net customer gain to the current number of customers and subtract it from their goal of 35,000.
Current number of customers: 17,156
Net customer gain: 1,802
Goal number of customers: 35,000
Estimated number of customers needed to reach the goal = Goal - (Current + Net gain)
Estimated number of customers needed = 35,000 - (17,156 + 1,802) = 35,000 - 18,958 = 16,042
Therefore, they need approximately 16,042 more customers to reach their goal.
Current number of customers: 17,156
Net customer gain: 1,802
Goal number of customers: 35,000
Estimated number of customers needed to reach the goal = Goal - (Current + Net gain)
Estimated number of customers needed = 35,000 - (17,156 + 1,802) = 35,000 - 18,958 = 16,042
Therefore, they need approximately 16,042 more customers to reach their goal.
Actually the answer to that is 16,000. I checked myself
Apologies for any confusion caused. Yes, you are correct. Rounding the estimated number of customers needed, 16,042, to the nearest thousand gives us 16,000. Therefore, they need approximately 16,000 more customers to reach their goal. Thank you for catching that.
1 answer