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jeyben [28]
2 years ago
7

Carl knitted 4 more scarves this year than last year. If he knitted 16% more scarves this year than last year, how many did he k

nit this year?
Mathematics
1 answer:
Readme [11.4K]2 years ago
7 0

Answer:25

Step-by-step explanation:

4 -> 16%

x->100%

x=400/16=25

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A spinner is divided into 13 equal-sized sections, and each section is labeled with a number 1 through 13.
nikitadnepr [17]

Answer:

10/13

Step-by-step explanation:

if this is wrong, im sorry, but im pretty sure its correct

5 0
3 years ago
Whatis the value of x in the equation<br> x -<br> y = 30, when y = 15?<br> 8
Ostrovityanka [42]

Answer:

x=45

Step-by-step explanation:

30+15=45

4 0
3 years ago
Can someone please help me with this
Mamont248 [21]
The answer to the questions is the second one
5 0
2 years ago
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Volume of prisms just 3 problems
Vladimir79 [104]

Answer:

2.  18 cubic cm.

3. 27 cubic cm

5. 90 cubic m

Step-by-step explanation:

2. Triangular prism

So, we have a triangular prism with a width of 3 cm, a height of 1.5 cm and a length of 4.  We'll take the triangle shape as the base.

Like for any prism, the volume is the base multiplied by the height.

So, the area of the base is found with the regular formula: base x height:

so, 3 x 1.5 = 4.5 sq cm for the base.

Then we multiply the base by the length to get the volume: 4.5 x 4 = 18 cubic cm.

3. Trapezoidal prism

Again, first step is to calculate the area of the trapezoid shape, then multiply by its depth.

The area of a trapezoid is calculated with the formula:

A = h/2 * (a + b) where a and b represent the short and long sides respectively.

So, for our given trapezoid:

A = 1.5/2 * (2+4) = 0.75 * 6 = 4.5 sq cm.

Then we multiply the base area by the height to get the volume:

V = 4.5 * 6 = 27 cubic cm

5. Triangular prism 2

The best way to approach this one is to consider it's a triangle prism with a height of 3 cm, and use the triangle shape (with sides of 13 and 5) as the base.

But to calculate the area of that triangle we need to find out the missing length. Using Pythagore's theorem, we can easily find the length of the other side with the hypotenuse formula:

hypotenuse² = sideA² + sideB²

In our case, we have:

13² = x² + 5²

169 = x² + 25

x² = 144

x = 12

Now we can calculate the area of the triangle easily:

A = (b x h)/2 = (5 x 12)/2 = 30 sq m

Then multiply by the thickness of the prism....

V = 30 x 3 = 90 cubic m

4 0
2 years ago
Which speed is at the sound barrier plz tell meh will mark brainless
vovangra [49]

Answer:

<em>343 metres per second </em>

<em>In dry air at 20 °C (68 °F), the speed of sound is 343 metres per second (about 767 mph, 1234 km/h or 1,125 ft/s).</em>

<em></em>

7 0
3 years ago
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