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MrRissso [65]
3 years ago
7

A little brown bat has eaten 1400 mosquitoes. It can eat 900 mosquitoes per hour. Let x be the number of hours it needs to hunt

and eat 4100 mosquitoes.
Mathematics
1 answer:
Nikitich [7]3 years ago
8 0
1400+ 900x= 4100

Subtract 1400 from each side

900x= 2700

Divide each side by 900

X= 3

It needs to eat 3 mosquitos each hour
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If y = -4 when x = 1, find y when x = 3
dedylja [7]

Answer: y=-6

Step-by-step explanation:

y = -4 when x = 1

find y when x = 3

y=-4   x=1

y=-5      x=2

y=-6     x=3

im not sure if this is right so I’m sorry

8 0
3 years ago
5.
kati45 [8]

Answer:

D) 11.

Step-by-step explanation:

y = 5x + p  and the point (-2, 1) is on the line, so substituting for (-2, 1):

1 = 5(-2) + p

p = 1 - 5(-2)

p = 1 + 10

p = 11.

8 0
3 years ago
Solve for x? I need help
Salsk061 [2.6K]

Answer:

17 = x

Step-by-step explanation:

720 = 110 + 8x -1 + 5x + 36 + 116 + 7x + 19 + 6x - 2

720 = 278 + 26x

442 = 26x

17    = x

7 0
3 years ago
Jenna uses 18 inches of ribbion for each box she wraps how many yards of rib ion does she need to wrap 4 boxes
Sav [38]
Hello Myeisha91! 

First we need to find how many inches in total to wrap 4 boxes. We do that by multiplying 18 x 4 = 72 so Jena needs 72 inches. The question wants to know how many yards so we need to convert 72 inches into yards. We can convert inches to yards by using a conversion factor. We know that 1 inch = 0.0277778 yd. Now that we know  1 inch = 0.0277778 yd, lets convert the 72 inches to yards.

We convert 72 in to yards by multiplying 72 in by \frac{0.0277778\;yd}{1\; in}
72\;in\times\frac{0.0277778\; yd}{1\;in} = 2\; yd
So Jenna will need 2 yards to wrap 4 boxes.
6 0
3 years ago
Veronica spent a minimum of $65 on a doll and accessories for the doll. The doll cost $26 and the accessories cost $13 each. Wri
ANEK [815]

Answer:  13x+26 \ge 65

If you solve for x, you get x \ge 3 which means she bought at least 3 accessories.

=========================================================

Explanation:

x = number of accessories, some nonnegative whole number

13x = amount spent on accessories only

For instance, let's say she bought 5 accessories. This means she spent 13x = 13*5 = 60 dollars on those five items.

This is on top of the $26 Veronica paid for the doll itself (without the accessories). In total, she spent 13x+26 dollars for the doll (26) and the accessories (13x) combined.

We're told she spent a minimum of $65, which means that she spent 65 or more dollars.

So the total cost (13x+26) must be equal to 65 or larger than 65.

We write that as 13x+26 \ge 65 which sets up the inequality.

----------------------------

Let's solve for x

13x+26 \ge 65\\\\13x \ge 65-26\\\\13x \ge 39\\\\x \ge 39/13\\\\x \ge 3\\\\

So x can be equal to 3, or larger than it.

The lowest value x can be is 3.

Meaning that she bought at least 3 accessories (ie she bought 3 or more accessories).

3 0
3 years ago
Read 2 more answers
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