All categories

3 years ago

This is not so hard please helpp

Mathematics

2 answers:

Shkiper50 [21]3 years ago

4 0

Answer:

23. 3

24. 9

25. 22

26. 2

Step-by-step explanation:

Inga [223]3 years ago

4 0

Answer:

23. 3

24. 9

25. 22

26. 100 I think

Step-by-step explanation:

23. 15 x 1/5 = 3

24. 45 x 1/5 = 9

25. 7 x 2 = 14 + 8 =22

26. 50 x 1/5 = 10, 10^2 = 100

You might be interested in

What is the product of 5 and 8<img src="https://tex.z-dn.net/?f=%5Csqrt%7B80%7D" id="TexFormula1" title="\sqrt{80}" alt="\sqrt{8

alina1380 [7]

Answer:

Step-by-step explanation:

√80 = √(2⁴ × 5) = √2⁴ × √5 = 4√5

5 × 8√80 = 160√5

3 0

2 years ago

Henry has 15 lawns mowed out of 60 lawns. What percent of the lawns does Henry still have to mow?

nata0808 [166]

Using is/of=%/100 15 lawns is what % of 60
15 over 60 = % over 100
Cross multiple and divide and you should get 25%
That percent means that 25% of the lawns are mowed, so 75%  of the lawns need to be mowed

8 0

2 years ago

Filipo is building a rectangular sandbox . The length of the sandbox is 1 foot longer than twice the width of the sandbox .the p

Alla [95]

Answer:

Part A : D.) $2w + 2(2w+ 1) = 29$

Part B : Length of the sandbox is 10 feet.

Step-by-step explanation:

Given,

Perimeter = 29 ft

We need to find the equation for the perimeter and also the length of the sandbox.

Solution,

Let the width of the sandbox be 'w'.

Now as per question said;

The length of the sandbox is 1 foot longer than twice the width of the sandbox.

So we can say that;

Length = $2w+1$

Now we know that the perimeter is equal to the sum of twice of length and width.

framing in equation form, we get;

Perimeter = $2(2w+1)+2w$

we have given the perimeter, so on substituting the value, we get;

$29=2(2w+1)+2w$

Hence The equation used to find the width is $29=2(2w+1)+2w$ .

Now we solve for 'w'.

Applying distributive property, we get;

$4w+2+2w=29\\\\6w+2=29$

Subtracting both side by '2' we get

$6w+2-2=29-2\\\\6w=27$

Dividing both side by 6 we get;

$\frac{6w}{6}=\frac{27}{6}\\\\w=4.5\ ft$

Width of the sandbox = 4.5 ft

Length of the sandbox = $2w+1=2\times4.5 +1 = 9+1=10\ ft$

Hence Length of the sandbox is 10 feet.

3 0

2 years ago

If a ray lays in a plane, how many points of the ray are also in the plane?

Over [174]

The answer is a all of the points

6 0

2 years ago

Read 2 more answers

A rectangular field on a farm is to be fenced in using the wall of the barn for one side and 200 meters of fencing for the other

vitfil [10]

Answer:

Rectangular area as a function of x : A(x) = 200*x + 2*x²

A(max) = 5000 m²

Dimensions:

x = 50 m

l = 100 m

Step-by-step explanation:

"x" is the length of the perpendicular side to the wall of the rectangular area to be fenced, and we call "l" the other side (parallel to the wall of the barn) then:

A(r) = x* l and the perimeter of the rectangular shape is

P = 2*x + 2*l but we won´t use any fencing material along the wll of the barn therefore

P = 2*x + l ⇒ 200 = 2*x + l ⇒ l = 200 - 2*x (1)

And the rectangular area as a function of x is:

A(x) = x * ( 200 - 2*x) ⇒ A(x) = 200*x + 2*x²

Taking derivatives on both sides of the equation we get:

A´(x) = 200 - 4*x ⇒ A´= 0

Then 200 - 4*x = 0 ⇒ 4*x = 200 ⇒ x = 50 m

We find the l value, plugging the value of x in equation (1)

l = 200 - 2*x ⇒ l = 200 - 2*50 ⇒ l = 100 m

A(max) = 100*50

A(max) = 5000 m²

3 0

3 years ago