4x - 3y = 1
-8x + 6y = -2

Answer:

a)37

b)10

c)0 beacuse if there 11 then they would be speeding and also if it wrond try 10

d)28.571428571429%Step-by-step explanation:

Answer:

1) 2x^3-2x^2+4x+20

Step-by-step explanation:

line up the equations, having each variable aligned with the similar variable, and distribute the minus sign across the parenthesis

7x^3              + 4x + 13

-(5x^3 + 2x^2          - 7)

---------------------------------

2x^3 - 2x^2 +4x +20

Answer:

His 2013-2014 salary will be $503,230

Step-by-step explanation:

His new salary will be

490,000 + 2.7% of 490,000

= 490,000 + (2.7/100 * 490,000)

= 490,000 + 13,230

= $503,230

Answer:

[tex] \huge{ \boxed{ \bold{ \tt{12}}}}[/tex]

Step-by-step explanation:

[tex] \sf{2 \div \frac{1}{6}} [/tex]

We know that division by fraction is the inverse of multiplication. If any number or fraction is divided by a fraction , we multiply the dividend by the reciprocal of the divisor. Reciprocal of any number or fraction can be obtained by interchanging the position of numerator and denominator.

[tex] : \longrightarrow{ \: 2 \times \frac{6}{1} }[/tex]

Multiply

[tex] : \longrightarrow{ \boxed{ \bold{ \text{12}}}}[/tex]

And we're done!

Hope I helped!

Best regards! :D

~[tex] \text{TheAnimeGirl}[/tex]

Answer:

D. 12

Step-by-step explanation:

2 = 2/1

2/1 ÷ 1/6 =

2/1 × 6/1 =

12/1 = 12

Answer:

28/100 * 100

the answer is 28 %

Answer:

can you help me if I help you plz

Answer:

The answer is 1.

Step-by-step explanation:

Plug in the values to make the equation -3+4*2/2

According to the order of operations, you should multiply what you can first.

so 4*2 = 8

Then 8 divided by 2 = 8/2=4

Then -3+4=1

Answer:

5

Step-by-step explanation:

y + x²÷2 when x=4 and y=-3

-3 + 4² ÷ 2

-3 + 16 ÷ 2

-3 + 8

5

I hoped this helped :)

Answer:

75 should be the answer

Answer:

The equation equals 0

Step-by-step explanation:

12 ( 1/3 ) + 5 - 9

4 + 5 - 9

9 - 9

= 0

Answer:

3 zeros

Step-by-step explanation:

The given function is   4x^3-x^2-2x+1

Because it is a polynomial function with degree 3>0 , Therefore by corollary of fundamental theorem of algebra , it has 3 zeroes.

Answer:

Step-by-step explanation:

4x3 − x2 − 2x + 1

I show one zero. X= - 0.78769256

Answer:

C & D. check the image just in case the order changes

Step-by-step explanation:

A system of equations is x + y =37 and x - y = 7 the positive numbers are 22 and 15.

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

We have:

The sum of the two positive numbers is 37, and their difference is 7.

Let x and y be the numbers:

x > 0 and y > 0

x + y =37

x - y = 7

The above two equations represent the situation where the sum of two positive numbers is 37, and their difference is 7.

After solving the above equation by elimination method:

2x = 44

x = 22

22 - y = 7

y = 22 - 7

y = 15

Thus, a system of equations is x + y =37 and x - y = 7 the positive numbers are 22 and 15.

Learn more about the linear equation here:

brainly.com/question/11897796

#SPJ5

Answer:

-24/35

Step-by-step explanation:

Find common denominators

140 is one

So, -126/140 + 30/140

This would be -96/140

Simplify

-48/70

Simplify some more

-24/35

Hope this helps :)

Please consider Brainliest :)

Answer:

-24/35

Step-by-step explanation:

Giving the fractions a common denominator:

-126/140 + 30/140

Adding:

-96/140

Dividing the numerator and denominator by 4:

-24/35

Answer:

3

Step-by-step explanation:

You solve the inner first, then move to the outer.

Let's look at g(3) first. It is stated in the problem that g(3) = 2.

We then use this value for f(x). It is stated in the problem that f(2) = 3.

The answer is 3.

Answer:

Step-by-step explanation:

No choices are listed.

But -60 divided by 5 is -12

Answer: 121

Step-by-step explanation:

11 x 11 is 121 so same number of rows and columns

Answer:

1260=(2-n)180

1260=360-180n

1260_360=-180n

900= -180n

n=900/-180

n= -5

n=

900/-180

Answer:

Step-by-step explanation:

150% is equivalent to 1.5 so the answer is:

1250 * 1.5

= 1875.

Answer:

1875

Step-by-step explanation:

Step-by-step explanation:

using Pythagoras theorem adjacent will be 15

so cos will be adjacent/hypotenuse

which is 15/17=0.882

Answer:

25

Step-by-step explanation:

3x+2x+55=180

5x+55=180

5x=180-55

5x=125

X=125/5

X=25

So the value of X is 25

Answer:

The answer is "Thus a chosen random book has a 15.87% chance of fewer than 170 pages".

Step-by-step explanation:

[tex]Mean = 190\\\\\text{Standard devaition} \ \sigma= 20\\\\\to P(\bar{x}<70)\\\\Z = \frac{(170-190)}{20}[/tex]

   [tex]= \frac{-20}{20} \\\\=-1[/tex]

It found a p-value from its empirical rule:

[tex]\to P(\bar{x}<170) = 0.1587[/tex]

90. For the first position,you can have one of 10 ppl in president/vice president. Then the remaining 9 ppl can be put in the remaining position. 10 * 9 = 90. If you need more explantion check these keywords. Factorial, permutations, combinations.

Answer:

x + -2

Step-by-step explanation:

(editing answer to add how i got it)

3x +6=-3 (2x +4)

-3 (2x +4)

Multiply using the distributive property.

− 6 x − 12 /2

3(2)(-3x - 4)

divide these by 2 will get you

SO ITS 3(2) +6 = 3(2) (2x +4)

Answer:

-2

Step-by-step explanation:

Answer:

1/2 because that %50

Step-by-step explanation:

Answer:

1/35

Step-by-step explanation:

Answer:

y = -1/4x + 2

Step-by-step explanation:

slope = rise over run

-1 rise for 4 run

y intercept = 2

y = -1/4x + 2

Answer:

the customer is wrong

Step-by-step explanation:

when he raised then 50 % they became $150 and then If you do the work 50% of $150 is $75 .

100+%50

150

150-%50

75

The customer is wrong because the new price of the shoe is $75 and not $100.

When the shop owner raises the price of a $100 pair of shoes by 50%, then the new price will be:

= $100 + (50% × $100)

= $100 + $50

= $150

Then, the owner reduces the price by 50%, then the new price will be:

= $150 - (50% × $150)

= $150 - $75

= $75

Therefore, the new price is $75.

Read related link on:

https://brainly.com/question/19539439

Answer:

Total wage= $680

Step-by-step explanation:

Giving the following information:

Regular wage= $10

One and a half= $15

Double= $20

To calculate the total wage, we need to use the following formula:

Total wage= x*10 + y*15 + z*20

x= normal hours

y=one and a half hours

z= double hours

Total wage= 40*10 + 8*15 + 8*20

Total wage= $680

Answer:680

Step-by-step explanation:

Answer:

Answer: A   [tex]\overline{TM}\cong \overline{OR}[/tex]

Step-by-step explanation:

The HL Theorem states that if the hypotenuse and leg of one right triangle are congruent to the hypotenuse and leg of another right triangle, then the two triangles are congruent.

Triangles TRO and OMT share the hypotenuse, so the first part of the theorem is met.

Both triangles are right because they have an internal angle of 90°, so the second condition is also met.

Since there is no indication of any leg to be congruent to another leg, we need additional information to prove that both triangles are congruent.

One of these two conditions should be met:

Side TM is congruent to side OR, or

Side MO is congruent to side RT.

From the available options, only the first is correct.

Answer: A [tex]\mathbf{\overline{TM}\cong \overline{OR}}[/tex]

Answer:

6

Step-by-step explanation:

6/1=6

Answer:

The amount borrowed at 20% simple interest was $7,000, while the amount borrowed at 5% simple interest was $2,000.

Step-by-step explanation:

Let x represents the amount borrowed at 20% simple interest.

Let y represents the amount borrowed at 5% simple interest.

Therefore, the amount borrowed at 5% simple interest will be:

y = 9000 - x ........................... (1)

As a result, we will have:

20%x =  interest at the end of 1 year from the amount borrowed at 20% simple interest

5% * (9000 - x) = 450 - 5%x = interest at the end of 1 year from the amount borrowed at 5% simple interest

Since the total interest at the end of 1 year was $1500, we have:

20%x + 450 - 5%x = 1500

We can now solve for x as follows:

20%x - 5%x = 1500 - 450

15%x = 1050

x = 1050 / 15%

x = 7000

Substituting x = 7000 into equation (1), we have:

y = 9000 - 7000

y = 2000

Therefore, the amount borrowed at 20% simple interest was $7,000, while the amount borrowed at 5% simple interest was $2,000.

Answer:

5 units

Step-by-step explanation:

BD is geometric mean ⇒ BD² = AD × DC

4x² = 10²  and x > 0

x² = 25  

x = 5 units