Victor has a bag of dimes and quarters. He has a total of 36 coins worth $5.40.

Let x represent the number of dimes and y represent the number of quarters.

Which system of equations would be used to find out how many dimes and quarters Victor has?


{x+y= 5.4
0.1x +0.25y =36

{x=36−y
x+y=5.4

{y=x+36
x+y=5.4

{x+y=36
0.1x+0.25y=5.4

Answer:

The answer is

Equation: y+-3=-8

Solution: y= -5

Step-by-step explanation:

Hope this helps!

Answer:

[tex]y=-\frac{9}{8} x+7[/tex]

Step-by-step explanation:

The slope is found by doing the equation [tex]\frac{rise}{run}[/tex]. When looking at the first two points, it's shown that the rise (difference between the two y values) is -9 (since it decreased by 9) and the run (difference between the two x values) is 8 (since it increased by 8). This makes the slope equal [tex]-\frac{9}{8}[/tex].

The y intercept is found by looking at the y value when x = 0. In this picture, it is clear that it is 7.

The equation you want to use is y = mx + b , where b is the y intercept and m is the slope. Just plug in the numbers and you got your equation!

Answer:

8

Step-by-step explanation:

hihihhhihihihihihihihihih

Pick choice-C ... AAS.

When I learned Geometry (during the late Pleistocene epoch), I don't remember ever using AAS.

BUT ... If you know 2 angles of a triangle, then you know all three, because they all add up to 180.

So if you have AAS=A'A'S', then you also have ASA=A'A'S', which was a congruence theorem even way back then.

Ahhh the good old days. We rarely got any homework, because the teachers all knew that the clay tablets would ruin our backpacks.

Answer:

1/6

Step-by-step explanation:

Answer:

Step-by-step explanation:

We are given three equations to solve. First, let's solve the equations for x.

Equation 1

[tex]\displaystyle{6x+8=7x+13}\\\\7x + 13 = 6x + 8\\\\x + 13 = 8\\\\\bold{x = -5}[/tex]

Therefore, we determined that for the first equation, x = -5. We can check our solution by substituting it back into the original equation.

[tex]\displaystyle{6(-5)+8=7(-5)+13}\\\\-30 + 8 = -35 + 13\\\\-22 = -22 \ \checkmark[/tex]

Since we got a true statement, there are no other values of x for which we get a true statement. Let's test this with the opposite value: positive 5.

[tex]6(5)+8=7(5)+13\\\\30 + 8 = 35 + 13\\\\38 = 48 \ \text{X}[/tex]

Therefore, for Equation 1, there is exactly one solution.

Equation 2

[tex]6 x + 8 = 2 ( 3 x + 4 )\\\\6x + 8 = 6x + 8\\\\0 + 8 = 8\\\\8 = 8 \ \checkmark[/tex]

We get a true statement by solving for x (which ends up canceling out of the equation entirely). Therefore, we can check any value in place of x to see if we get a true statement. For this instance, I will use -3.

[tex]6(-3) + 8 = 2 ( 3(-3) + 4 )\\\\-18 + 8 = 2(-9+4)\\\\-18 + 8 = 2(-5)\\\\-18 + 8 = -10\\\\-18 = -18 \ \checkmark[/tex]

We still get a true statement, so Equation 2 has infinitely many solutions.

Equation 3

[tex]6 x + 8 = 6 x + 13\\\\0 + 8 = 13\\\\8 \neq 13[/tex]

We get a false statement. Therefore, Equation 3 has no solution.

Answer:

8

Step-by-step explanation:

we can say that AD is congruent to DC

so your equation for x is: 4x - 1 = 2x

solve this to get x = 0.5

plug x into and equation and multiply you answer by 2 to find the hypotenuse of triangle ABC and DEF

4(0.5) - 1 = 1

hypotenuse: 1 x 2 = 2

since we know x is 0.5, plug this into 4x + 1 to find the length of the leg FE,

4(0.5) + 1 = 3

In the diagram, it shows that the legs of triangle are congruent

this means that FE, ED, BA, and BC are all congruent

since we know FE is 3, we know that all the other sides are 3 as well

this means that the perimeter of the triangle is: leg + leg + hypotenuse

so 3 + 3 + 2

the perimeter is 8

Answer:

The statements(s) that could be used in a proof with the reason Corresponding Parts of Congruent Triangles are Congruent (CPCTC) are;

AC ≅ EG

BC ≅ FG

∠CBA ≅ ∠GEF

Step-by-step explanation:

CPCTC is a phrase that stands for Corresponding Parts of Congruent Triangles are Congruent. It can be used as a bases for congruent relationships of corresponding angles and segments, after two triangles have been proven as congruent

Given ΔABC is congruent to ΔEFG, we have by CPCTC;

Side AB ≅ Side EF

Side AC ≅ Side EG

Side BC ≅ Side FG

∠A ≅ ∠E

∠B ≅ ∠F

∠C ≅ ∠G.

Answer:A. Most cats were in the 7th month and least in the 1st. B. Looking at the graph is legit straight up lit facts. C. I cannot justify the correlation. D. Well we could just kill off all the cars and be down with them falling out the stupid window or we can get them smarter owners

Step-by-step explanation:

Answer:

13/13= Slope = 1

Step-by-step explanation:

M=rise/run, So that means 13 down then 13 to the left.

So 13/13 is the slope, but if it is simplified it is slope=1

Answer:

x=21

Step-by-step explanation:

I think we are supposed to assume that is a right angle which means 90-6= 84

84/4= 21

Answer:

x = 1

Step-by-step explanation:

3x +2y = 15

y = 6x

Substitute y for 6x in 3x +2y = 15!

3x + 2(6x) = 15

3x + 12x = 15

Combine like terms

15x = 15

Divide both sides by 15

15x = 15

x = 1

Brainliest is much appreciated!

Answer:

15 joules

Step-by-step explanation:

SUBTRACT 3 FROM 18

18 JOULES-3 JOULES=15 JOULES

HOPE IT HELPS

Answer Yes, because you take the answer from 100+45 and subtract 3 to get to 97 and then you add 29 to make the 47 a 74.

Step-by-step explanation:

Answer:

Step-by-step explanation:

The simple interest can be found by using the formula

[tex]I = \frac{p \times r \times t}{100} \\ [/tex]

p is the principal

r is the rate

t is the time

From the question we have

[tex]I = \frac{6300 \times 6 \times 2}{100} = \frac{75600}{100} \\ [/tex]

We have the final answer as

Hope this helps you

Answer:

56x^2 + 10^-11

Step-by-step explanation:

multiply the 7x and 8x and you get 56x^2

multiply the 10^-6 and 10^5-5 and you get 10^-11

Answer:

C

Step-by-step explanation:

The correct format of the question is

After an​ accident, police can use the formula [tex]v=2\sqrt{5L }[/tex] to estimate the​ speed, v, in miles per​ hour, that a car was traveling by measuring the length of the skid​ marks, L, in feet. Estimate the speed of a car that left skid marks 118 ft long. If the posted speed limit is 45 ​mi/h, was the car​ speeding? The speed of a car that left skid marks 118 ft long was about nothing ​mi/h.

Answer:

48.6mi/h, Yes the car was speeding.

Step-by-step explanation:

The speed of the car is given by  [tex]v=2\sqrt{5L }[/tex]

Skid length (L) = 118ft

V= [tex]2\sqrt{5*118}[/tex]

  = 2 [tex]\sqrt{590}[/tex]  

  =  2*24.3

V = 48.6mi/h

Since the speed limit is 45mi/h and the velocity of this driver is 48.6mi/h it is clear that was speeding by 3.6mi/h over speed limit.

Answer: x=-7

Step-by-step explanation:

Answer:

y=2

x=5

trust me its by calculator

Answer:

x=5

y=2 true......

Step-by-step explanation:

.............

Answer:

.4 and it terminates

Step-by-step explanation:

Answer:

red

Step-by-step explanation:

Answer:

The molecular or chemical formula of Lithium Bromide is LiBr. Lithium Monobromide is synthesized by treating lithium carbonate (Li2CO3) with hydrobromic acid (HBr). The salt forms cubic crystals which are similar to sodium chloride.

Step-by-step explanation:

hope this helped:)

Answer:

lithium bromide is a chemical compound of lithium and bromine

Step-by-step explanation:

Br-Li+

Answer:

82

Step-by-step explanation:

10z^2-2z-2

10x3^2-2x3-2

90-6-2

90-8

82

Answer:

82

Step-by-step explanation:

Evaluate 10z² - 2z - 2 where z = 3:

[tex] \longrightarrow [/tex] 10z² - 2z - 2 = 10 × 3² - 2 × 3 - 2

3² = 9:

[tex] \longrightarrow [/tex] 10 × 9 - 2 × 3 - 2

10 × 9 = 90:

[tex] \longrightarrow [/tex] 90 - 2 × 3 - 2

-2 × 3 = -6:

[tex] \longrightarrow [/tex] 90 - 6 - 2

90 - 6 - 2 = 90 - (6 + 2):

[tex] \longrightarrow [/tex] 90 - (6 + 2)

6 + 2 = 8:

[tex] \longrightarrow [/tex] 90 - 8

[tex] \longrightarrow [/tex] 82

Reflect over the horizontal axis, and then translate the graph up 3 units

Answer: Reflect over the horizontal axis, and then translate the graph up 3 units.

Answer:

11-111=0b1100100

Answer:

9) B= 115 / C= 65 / D=135 / E= 115 / F=25

10) B= 110 / C= 70 / D=1120 / E=70 / F= 20

11) A= 68 / B= 112 / C= 68 / D=112 / E= 68

12) A= 64 / B=116 / C= 64 / E=64 / F=26

Step-by-step explanation:

9) B= 115 / C= 65 / D=135 / E= 115 / F=25

10) B= 110 / C= 70 / D=1120 / E=70 / F= 20

11) A= 68 / B= 112 / C= 68 / D=112 / E= 68

12) A= 64 / B=116 / C= 64 / E=64 / F=26

Answer:

Step-by-step explanation:

Answer:

Look at the graph, because I got it wrong I hope you guys get it! :)

Step-by-step explanation: