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Andrej [43]
3 years ago
11

Does anyone know any 7th grade math? cus i really need help with this.

Mathematics
1 answer:
sladkih [1.3K]3 years ago
8 0

Answer:

B

Step-by-step explanation:

All we have to do is plug in the values! 1/2(4)(10+5) will give us the area. Now we simplify!

2(15) = A

30=A

Our answer is B!

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Manuel bought a shirt and a sweater for a total price of $65. The price of the sweater was $5 more than twice the price of the s
Annette [7]

Answer:

$20

Step-by-step explanation:

Since we are talking about the unknown cost of a shirt AND a sweater, we are dealing with 2 unknowns.  However, we can only have one unknown in a single equation or we cannot solve it.  The cost of the sweater is based on the cost of the shirt, so the shirt will be our "main" unknown.

Cost of the shirt:  x

Since the sweater is $5 more than (this is addition) twice (that is 2 times) the cost of the shirt, the expression for the sweater is 2x + 5

The cost of both is (equals) 65.

x + 2x + 5 = 65 and

3x + 5 = 65 and

3x = 60 so

x = 20

The shirt cost $20 so the sweater had to cost 65 - 20 = 45

3 0
2 years ago
Find the rule. Solve for n
Serga [27]
Is there more to this question?
3 0
3 years ago
Enter the degree of the polynomial below.
GREYUIT [131]

Answer:

B

Step-by-step explanation:

it goes from the 7th power to the 4th power. So add them together and you get 11

8 0
3 years ago
Russell has a collection of 1,200 pennies. Of these pennies, 25% are dated before 1980, 35% are dated from 1980 to 2000, and the
STatiana [176]
480 pennies.

25% are dated before 1980, therefore:
1200(total):100 = 12 (1%)
12(1%)x25 = 300 (25%)

35% are dated from 1980 to 2000, therefore:
12(1%)x35 = 420 (35%)

25% are dated before 1980, 35% are dated from 1980 to 2000 and the rest are dated after 2000.
25% + 35% = 60%.
300(25%) + 420(35%) = 720.
60% = 720.
100%-60% = 40%.
40% is the amount of pennies that are dated after 2000.

The total (100%) of the pennies is 1200.
We also know that 60% of the total (1200) is 720.

1200(100%) - 720(60%) = 480(40%).

Therefore, the amount of pennies dated after 2000 in Russell’s Collection is 480.
7 0
2 years ago
The bakers at Healthy Bakery can make 270 bagels in 5 hours. How many bagels can they bake in 18 hours?
alekssr [168]
972 bagels the third one
3 0
3 years ago
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