All categories

3 years ago

I need help on this problem -10.7 + (-19.26) (I have to show my work btw)

Mathematics

1 answer:

Brut [27]3 years ago

3 0

Answer:

-29.96

Step-by-step explanation:

You add both numbers, as both are negative, and you get the answer.

You might be interested in

Consider the system of equations. y = −2x + 4 y = − 1/3x − 1

ipn [44]

Hey there! I'm happy to help!

We have two values for y. Since y=y, this means that −2x + 4 and − 1/3x − 1 are equal as well, so we can put them in an equation and solve for x.

−2x + 4 = − 1/3x − 1

We subtract 4 from both sides.

-2x=-1/3x-5

We add 1/3 x to both sides.

-5/3x=-5

We divide both sides by -1 2/3.

x=3

Now, we plug this into one of the original equations to find y.

y=-2(3)+4

y=-6+4

y=-2

Therefore, the solution is (3,-2) or x=3 and y=-2.

I hope that this helps! Have a wonderful day! :D

4 0

2 years ago

-2x-3y=-16; 5x+9y=40

MA_775_DIABLO [31]

Answer:

x=8 y=o

Step-by-step explanation:

If first expression multiples 3 so: -6x-9y=-48 to emerge with second expression

7 0

3 years ago

Half of a number plus 12 is 46

asambeis [7]

Let the number = x
x/2 + 12 = 46
x/2 = 46 - 12
x/2 = 34
x = 34 * 2
x = 68

So, your final answer is 68

Hope this helps!

4 0

2 years ago

Read 2 more answers

A square has side length of 9 in. If the area is doubled, what happens to the side length?

Alika [10]

Answer:

The side length is multiplied by $\sqrt{2}$

Step-by-step explanation:

we know that

The area of the original square is equal to

$A=9^{2}=81\ in^{2}$

If the area is doubled

then

The area of the larger square is

$A1=(2)81=162\ in^{2}$

Remember that

If two figures are similar, then the ratio of its areas is equal to the scale factor squared

Let

z ----> the scale factor

x ----> the area of the larger square

y ---> the area of the original square

$z^{2}=\frac{x}{y}$

we have

$x=162\ in\^{2}$

$y=81\ in\^{2}$

$z^{2}=\frac{162}{81}$

$z^{2}=2$

$z=\sqrt{2}$ ------> scale factor

therefore

The side length is multiplied by $\sqrt{2}$

7 0

2 years ago

The Social Security Administration increased the taxable wage base from $106,800 to $110,100. The 6.2% tax rate is unchanged. Jo

Rzqust [24]

Answer:

The Social Security Administration increased the taxable wage base from $106,800 to $110,100.

The percent increase in the base =

$\frac{110100-106800}{106800}\times100=3.09$ %

Previous year tax = $0.062\times106800=6621.60$ dollars

This year tax = $0.062\times110100=6826.20$ dollars

Increase in tax = $6826.20-6621.60=204.60$ dollars

Hence, Joe’s increase in Social Security tax for the new year is $204.60.

5 0

2 years ago