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Ghella [55]
2 years ago
13

WILL GIVE BRAINLIESTTTT and 13 points HELPPPPPPP ONLY QUESTION B)

Mathematics
1 answer:
Leno4ka [110]2 years ago
4 0

Answer:

2(n+1)+2

You start with two greens and two columns of two orange squares while adding two orange squares each time. So, the bolded part is the green squares that stay the same. The 2(n+1) represents the two orange columns that increase by one block on each side per image.

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4. What is the x-value of
Viefleur [7K]

Answer:

B) 1

Step-by-step explanation:

Since we are using elimination, we can just cancel 2y and -2y. No need of multiplying anything if we are just looking for x.

We add the equations and get:

9x=9

Then divide and the final answer is:

x=1

:)

3 0
3 years ago
Mardi received an inheritance of $40,000. She invested part at 9% and the rest at 12%. Her total annual income from the investme
-BARSIC- [3]

Answer:

She invested $30,000 at 9%

Step-by-step explanation:

Let the amount invested per percentage be $x and $y respectively

Total investment is 40,000

This means that;

x + y = 40,000 ••••••••••(i)

Now for her income;

9/100 * x = 9x/100

for the 12% = 12/100 * y = 12y/100

Now;

9x/100 + 12y/100 = 3,900

9x + 12y = 390000 •••••••••(ii)

we solve both simultaneously

From i, y = 40,000-x

Substitute this into ii

9x + 12(40,000-x) = 390,000

9x + 480,000-12x = 390,000

3x = 480,000-390,0000

3x = 90,000

x = 90,000/3

x = $30,000

5 0
3 years ago
This shape is made of three identical semicircles.
Yuliya22 [10]

Answer:

48cm

Step-by-step explanation:

The perimeter of first shape is 36cm. There are 3 semi circle (curves).

Therefore,

3 curves of semicircle (arc length) = 36

1 curve of semicircle (arc length) = 36/3

= 12cm

In picture 2,

4 semicircles (They've mentioned that they used the same semicircle for the 2nd shape also)

So,

4×12 = 48cm

8 0
2 years ago
Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels 18 miles per hou
blagie [28]

Formula: Distance = rate * time

570 = (R+(R-18))*3

570 = (2R - 18)*3

190 = 2R-16

208 = 2R

R = 104


Eastbound Train: 86mph

Westbound Train: 104mph

3 0
3 years ago
A) What is the y-intercept of y = 3x ?<br> (b) What is the slope of y = -x - 2 ?
JulijaS [17]

Answer:Q. How would you write the equation with a slope of 2/3 and a y-intercept of -3. answer choices. y=3/2x+3. y=2/3-3. y=2/3x-3. y=2/3x+3. Tags: Question 11.

Step-by-step explanation:

THATS IT I THINK sorry caps

5 0
3 years ago
Read 2 more answers
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