Lee scored 25 points in yesterday's game. That was 3 more than twice the number of points Alex scored. Which equation can be used to find, a, the number of points Alex scored?
We can set up the equation as follows:
2a + 3 = 25
The equation represents that the number of points Alex scored, represented by a, multiplied by 2 and added by 3 is equal to 25.
Last week, Ellen bought 4 apples for $2.40. This week she bought 9 apples for $5.40. If the cost per apple remains the same, how many apples could she buy next week?
To find out how many apples Ellen could buy next week, we need to determine the average cost per apple.
The average cost per apple is found by dividing the total cost by the number of apples.
For the first purchase:
Cost of 4 apples = $2.40
Average cost per apple = $2.40 / 4 = $0.60
For the second purchase:
Cost of 9 apples = $5.40
Average cost per apple = $5.40 / 9 = $0.60
Since the cost per apple remains the same at $0.60, we can use this information to find out how many apples Ellen could buy next week.
If the total cost for next week's purchase is known, we can divide that cost by $0.60 to find the number of apples.
Let's assume the total cost for next week's purchase is $X. The equation would be:
X / $0.60 = number of apples
So, if we know the total cost for next week's purchase, we can divide that cost by $0.60 to find the number of apples Ellen could buy.
Last week, Ellen bought 4 apples for $2.40. This week she bought 9 apples for $5.40. If the cost per apple remains the same, how many apples could she buy next week? A. 1 apple for $1.20 B. 6 apples for $3.40 C. 10 apples for $6.00 D. 13 apples for $8.20
Since the cost per apple remains the same, we can use the information provided to determine the cost per apple.
First, let's calculate the cost per apple for last week's purchase:
Cost of 4 apples = $2.40
Cost per apple = $2.40 / 4 = $0.60
Next, let's calculate the cost per apple for this week's purchase:
Cost of 9 apples = $5.40
Cost per apple = $5.40 / 9 = $0.60
Since the cost per apple remains $0.60, we can use this information to determine how many apples Ellen could buy next week with a given total cost.
Let's go through each answer choice:
A. 1 apple for $1.20
With a cost per apple of $0.60, 1 apple would cost $0.60, not $1.20. So, this option is incorrect.
B. 6 apples for $3.40
With a cost per apple of $0.60, 6 apples would cost $3.60, not $3.40. So, this option is incorrect.
C. 10 apples for $6.00
With a cost per apple of $0.60, 10 apples would cost $6.00. This option could be correct.
D. 13 apples for $8.20
With a cost per apple of $0.60, 13 apples would cost $7.80, not $8.20. So, this option is incorrect.
Therefore, the correct answer is C. 10 apples for $6.00.
A company charges $7 for a T-shirt and ships any order for $22. A school principal ordered a number of T-shirts for the school store. The total cost of the order was $1,520. How many T-shirts did the principal order?
Let x be the number of T-shirts the principal ordered.
The cost of the T-shirts is given by:
Cost of T-shirts = $7 * x
The cost of shipping is also given as $22.
The total cost of the order is $1,520.
So, the equation we can set up is:
$7 * x + $22 = $1,520
To determine the number of T-shirts the principal ordered, we need to solve this equation for x.
First, we can subtract $22 from both sides of the equation:
$7 * x = $1,520 - $22
This simplifies to:
$7 * x = $1,498
Next, we can divide both sides of the equation by $7 to isolate x:
x = $1,498 / $7
x ≈ 214
Therefore, the principal ordered approximately 214 T-shirts.
he table below shows the total number of brake pads produced by machines throughout a 12-hour work day. What is the unit rate for brake pads produced per hour?
To calculate the unit rate for brake pads produced per hour, we need to divide the total number of brake pads produced by the number of hours.
Since the table is not provided, we cannot determine the exact values. However, we can provide an example with hypothetical values.
Let's say the total number of brake pads produced in a 12-hour work day is 1,200.
Unit rate = total number of brake pads produced / number of hours
Unit rate = 1200 / 12
Unit rate = 100 brake pads per hour
So, in this hypothetical example, the unit rate for brake pads produced per hour is 100.