All categories

3 years ago

Hello, I need this to be answered asap, it's attached and I also have more questions too.

Mathematics

1 answer:

Angelina_Jolie [31]3 years ago

3 0

Answer:

2.33 x 3.26 = 6

32.13 x 2.26=64

523.1 x 9.71=5,230

2561/20.36=128.5

7.6 x 3.89=32

38.89 x 52.25=2028

1826/19.51=91.3

201.21 x 65.63=13,266

Step-by-step explanation: Again, going by what you said, 2.33 would round to 2. So, on the paper attached, I rounded all the numbers to the nearest whole number and then I multipled them. To clarify, if the answers need to be rounded to the nearest whole number as well, then 91.3 would be 91 instead and 128.5 would be 129 instead

You might be interested in

PLEASEEEE HELPPPPP!!!

Taya2010 [7]

(1, 3.5 ) and (3, 3.5 )

the endpoints of the midsegment are at the midpoints of DE and DF

using the midpoint formula with D(0, 7), E(2, 0), F(6, 0)

midpoint of DE = [ $\frac{1}{2}$ (0 + 2), $\frac{1}{2}$ (7 + 0)] = (1, 3.5)

midpoint of DF = [ $\frac{1}{2}$ (0 + 6), $\frac{1}{2}$ (7 + 0)] = (3, 3.5)

4 0

3 years ago

Melissa bought 40 books. Melissa bought 8 times as many books as Brian. Let b be the number of books that Brian bought

Kay [80]

Answer:

a) 40 = 8b

b) b = 5

Step-by-step explanation:

(b) 40 = 8 × b

40 ÷ 8 = b

5 = b

4 0

3 years ago

Help!!! f(x)=x+3 g(x) =7x+4

Tasya [4]

Answer:

8x+7

Step-by-step explanation:

8 0

3 years ago

Una parte de 25 000 dólares se invierte al 10% de interés, otra parte al 12 % y el resto al 16%. El ingreso anual total de las t

Drupady [299]

Answer:

$5000 at 10%, $10000 at 12% and 10000 at 16%

Step-by-step explanation:

One part of $ 25,000 is invested at 10% interest, another part at 12%, and the rest at 16%. The total annual income from the three investments is $ 3,200. Also, the income from the investment at 16% is equal to the income from the other two investments combined. How much was invested at each interest rate?

==================

Let the parts be x, y and z

As per given we get below system of equations:

x + y + z = 25000
0.1x + 0.12y + 0.16z = 3200
0.1x + 0.2y = 0.16z

Substitute 0.1x + 0.2y in the second equation:

0.16z + 0.16z = 3200
0.32z = 3200
z = 3200/0.32
z = 10000

Now we have:

x + y + 10000 = 25000 ⇒ x + y = 15000

and

0.1x + 0.12y + 0.16*10000 = 3200 ⇒ 0.1x + 0.12y = 1600

Multiply the second equation and then subtract the first one:

10(0.1x + 0.12y) = 10(1600) ⇒ x + 1.2y = 16000
x + 1.2y - (x + y) = 16000 - 15000
0.2y = 1000
y = 10000

Then

x = 15000 - 10000 = 5000

So the parts are:

$5000 at 10%, $10000 at 12% and 10000 at 16%

4 0

3 years ago

Two planes are 1380 miles apart and traveling toward each other. One plane is traveling

vaieri [72.5K]

Answer: plane 1: 420 mph; plane 2: 500 mph

Step-by-step explanation:

This is a physics exercise, but in order to solve this problem, you need to identify both planes first:

Let's call the plane 1 speed X

V1 = X

And V2 would be:

V2 = V1 + 80 = X + 80

If we combine both speeds:

V = V1 + V2 = X + X + 80 = 2X + 80

Now that we have an expression for the combined speed, let's see the rest of the data:

Distance: d = 1380 mile

Time: t = 1.5 h

We also know that the formula to get speed is:

V = d/t

We have the combined speed, so, let replace it in the above formula to solve for X:

2X + 80 = 1380/1.5

2X + 80 = 920

2X = 920 - 80

2X = 840

X = 840/2

X = V1 = 420 mph

We have V1, so to get V2:

V2 = 420 + 80 = 500 mph

8 0

3 years ago