All categories

2 years ago

Please do 25 and 26 or atleast one

Mathematics

1 answer:

Sever21 [200]2 years ago

4 0

For 25, I would begin with working out the difference in price.

$450 - $360 = $90

Then, $450 is 100% of the cost, therefore we want to know how much it has decreased.

I would work out 1% of $450. [$450 / 100 = $4.50]

Now if we divide $90 (the change in cost) by $4.50, we can tell what percent of a decrease we have.

90 / 4.5 = 20

Therefore we have a 20% decrease.

You might be interested in

Which number line represents -3 < x < 1?<br> H<br> -5 4 3 2 1 1 2 3 3 4 5

Sunny_sXe [5.5K]

Answer:

Can I see/view the picture of option 3?

Step-by-step explanation:

6 0

3 years ago

A cookie recipe calls for 1 2/3 cup of sugar. If you plan on changing the recipe to make 2 1/2 times as much. How much sugar wil

Morgarella [4.7K]

Answer:

= 4 1/6 ---------------> final answer

Step-by-step explanation:

1 2/3 cup of sugar

That is : 5/3 cups of sugar for 1 cookie recipe

So for 1 recipe ------------- 5/3 cups of sugar

hence for 2 1/2 recipe ---------------> (5/3) * (5/2)

= 25/6

= 4 1/6 ---------------> final answer

7 0

3 years ago

Read 2 more answers

Solve for x.

Ivahew [28]

ANSWER

$x=\frac{2-\sqrt{10}} {3}$

or

$x=\frac{\sqrt{10}+2} {3}$

We have

$3x^2-4x-2=0$

Since we cannot factor easily, we complete the square.

Adding 2 to both sides give,

$3x^2-4x=2$

Dividing through by 3 gives

$x^2-\frac{4}{3}x= \frac{2}{3}$

Adding $(-\frac{2}{3})^2$ to both sides gives

$x^2-\frac{4}{3}x+(-\frac{2}{3})^2= \frac{2}{3}+(-\frac{2}{3})^2$

The expression on the Left Hand side is a perfect square.

$(x-\frac{2}{3})^2= \frac{2}{3}+\frac{4}{9}$

$\Rightarrow (x-\frac{2}{3})^2= \frac{10}{9}$

$\Rightarrow (x-\frac{2}{3})=\pm \sqrt{\frac{10}{9}}$

$\Rightarrow (x)=\frac{2}{3} \pm {\frac{\sqrt{10}}{3}$

Splitting the plus or minus sign gives

$x=\frac{2- \sqrt{10}} {3}$

or

$x=\frac{\sqrt{10}+2} {3}$

3 0

3 years ago

Read 2 more answers

The figure shown is a rectangle. The green shape in the figure is a square. The blue and white shapes are rectangles, and the ar

VikaD [51]

Answer:

A. (2 × 6) + (3 × 8) + 6²

72 sq. inches.

B. 9 in. by 8 in.

Step-by-step explanation:

The white shape has dimensions of 2 in. by 6 in. and the green shape is a square.

So, the dimension of the green shape is 6 in. by 6 in.

Therefore, the length of the blue shape is (6 + 2) = 8 in.

Now, given that the area of the blue shape is 24 sq. in.

So, the width of the blue shape is $\frac{24}{8} = 3$ in.

Now, if we consider the total figure, then area of the entire figure = area of the white shape + area of the green shape + area of the blue shape.

= (2 × 6) + (3 × 8) + 6² (Answer)

= 12 + 24 + 36

= 72 sq, inches. (Answer)

Now, the length of the entire figure is (6 + 3) = 9 in. and width of the entire figure is (2 + 6) = 8 in.

Therefore, the dimensions of the entire figure will be 9 in. by 8 in. (Answer)

5 0

3 years ago

Type an integer or decimal 0.16(y-5)+0.12y=0.20y-0.9

Over [174]

Answer:

16y

Step-by-step explanation:

4 0

3 years ago