7(x + 4y)
7x+28y=35xy

Answer:

136.3

Step-by-step explanation:

I assume it is asking you to add both 9.3x and 8.9y together. First you would multiply 9.3 by 7 and 8.9 by 8 which gives you 65.1 + 71.2 which equals 136.3.

Answer:

11

Step-by-step explanation:

Do kcf (keep,change,flip)

First, covert 2 3/4 into an improper fraction

Then after you do that you get 11/4

so you do the equation 11/4 ÷ 1/4

when you do kcf it would be 11/4 × 4/1=

11/4×4/1=44/4 simplify divide both by 4 = 11

Answer: the 1 is > the one below it is < the one next to it unknown

and the one next to it is > and the last one is =

branliyist please

Step-by-step explanation:

Answer: Can’t solve without picture.

Step-by-step explanation:

You should add a picture or at least draw it. It can’t be solved without it because the sides need to correlate together.

Answer:

120 + 10x

or

10(12 + x)

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

Answer:

Emily's inequality x < 6 is correct because the number of hours is less than or equal to.

Emily's number line is incorrect The endpoint is filled in and the number line is greater than the endpoint.

Step-by-step explanation:

Emily's Model:

                                       x < 6

<----|----|----|----|----|----⊕----|----|----|----|----|----|----|----|---->

     1    2   3    4   5    6   7   8   9   10  11   12  13  14

What Emily's model should look like to make the number line true:

                                       x < 6

<----|----|----|----|----|----О----|----|----|----|----|----|----|----|---->

     1    2   3   4    5    6     7     8   9   10  11  12  13  14

Answer:

-2

Step-by-step explanation:

if you add 6 to -8 you get -2. also if you go on desmos and do the slope, you get -2

Answer:

a) 4800 bacteria

b) [tex]y(t) = 300(4)^t[/tex]

c) 754 bacteria

Step-by-step explanation:

A bacteria culture starts with 300 bacteria and doubles in size every half hour.

This means that the number of bacteria after t periods of half hour is given by:

[tex]y(t) = 300*(2)^{t}[/tex]

(a) How many bacteria are there after 2 hours?

2 hours is 2*60/30 = 4 periods of 2 hours, so this is y(4).

[tex]y(4) = 300*(2)^{4} = 300*16 = 4800[/tex]

(b) How many bacteria are there after t hours?

It doubles every half hour, so each hour, it is multiplied by 4. Then

[tex]y(t) = 300(4)^t[/tex]

(c) How many bacteria are there after 40 minutes?

40 minutes is 40/30 = 1.33 periods of half hour. So this is y(1.33).

[tex]y(1.33) = 300*(2)^{1.33} = 754[/tex]

Answer:

£15347.07

Step-by-step explanation:

Given data

Amount=£19064.67

% decrease=19.5%

let us find the value of 19.5%

=19.5/100*19064.67

=0.195*19064.67

=£3717.6

Hence the new Amount after the decrease is

=19064.67-3717.6

=£15347.07

Answer:

true

Step-by-step explanation:

20x-50

5 x 4x = 20x

5 x 10 = 50

Answer:

Right angle triangle

Step-by-step explanation:

Answer:

Yes

Step-by-step explanation:

If 2/5kg fills one third, let's multiply 2/5kg by 3 to find out how much soil the conatainer can hold.

(2/5kg)(3) = 9/5kg = 1.8kg

1.8kg>1kg, so the answer is yes

Answer: Yes it is a function

Step-by-step explanation:

Answer:

520.83 k g  of seed

Step-by-step explanation:

Answer:

A #2.5#-#kg# bag of grass seed covers an area of #1200# #m^2#. How much seed is needed to cover a square park with side length #500# #m#?

Step-by-step explanation:

Answer:

(2/5)*b+1 = -11 // + 11

(2/5)*b+1+11 = 0

2/5*b+12 = 0 // - 12

2/5*b = -12 // : 2/5

b = -12/2/5

b = -30

b = -30

Step-by-step explanation:

hope this helped :)

Step-by-step explanation: First: Multiply 2/5 by 2. 5x2=10. 10 then turns into o a whole number +1=11.

10+1=11

Answer:

x=25

Step-by-step explanation:

To get this answer you need to simplify everything that you can. So basically, first you would combine 2x and x to get 3x+18. Note that you don't need to use the second part of the equation if you don't want to. Same with the third because they are all equal. Noting this, you subtract 18 from both sides of the equation leaving you with 75= 3x. Proceed to divide both sides by three and end with the answer 25=x.

Answer:

x=−3 or x=5

Step-by-step explanation:

Answer:

a. 36ft

b. 20 inches

Step-by-step explanation:

Answer:

The density of the pine log is 0.2842 pounds per inch.

Step-by-step explanation:

To calculate the density of an object, you must divide its mass by its volume (radius times height). Thus, given that the pine log that has a 5-inch radius and is 30 inches long, while its weight is approximately 42.63 pounds, the following calculation must be performed to determine its density:

X = 42.63 / (30 x 5)

X = 42.63 / 150

X = 0.2842

Thus, the density of the pine log is 0.2842 pounds per inch.

Answer:

113335800

Step-by-step explanation:

solve it step by step

10 x 5/2 is 25

25 x 4533432= 113335800

Answer:

113335800

Step-by-step explanation:

10x5=50

2x4533432=9066864

9066864+50=113335800

Answer:

Looks like a toy for the kids and the kids are doing well 6 I have been doing a lot of work on the graph of my own and my

Answer:

C

Step-by-step explanation:

This is the only possible correct answer because the other three all show the final price as 0.90x, which is correct since the price is the normal one minus 10 percent. C is incorrect because it suggests the normal price has a 10% tax, or extra value on it.

Answer:

$252

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 3%/100 = 0.03 per year,

then, solving our equation

I = 1200 × 0.03 × 7 = 252

I = $ 252.00

The simple interest accumulated

on a principal of $ 1,200.00

at a rate of 3% per year

for 7 years is $ 252.00.

Answer:

Step-by-step explanation:

8-4(2+ (5)2) /12

8-4 (2+25)/12

8-4 (27)/12

4(27) /12

108/12

= 9