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3 years ago

The units digit of a two-digit exceeds twice the tens digit by 3. The sum of the digits is 6. Find the number

Mathematics

1 answer:

tekilochka [14]3 years ago

8 0

Answer:

Step-by-step explanation:

y is the ten digit

and x the ones digit

y+x=6 -> x=6-y subtracted each side by y

2y+3=x

2y+3=6-y they both equal x so the equal each other

add y to both side to get rid of the y

minus 3 form both side to get rid of the 3

3y=3

y=1

plug it in

2(1)+3=x

5=x

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What is the relation between the trigonometric ratios tan(R) and tan(J)? Please answer ASAP!

Ilya [14]

Step-by-step explanation:

∆PQR similar to ∆ JKL

JK/KL= PQ/QR

6/12=3/QR

QR=3×2= 6

therefore, tan(R) = PQ/QR = 3/6=1/2

and, tan(J) = KL/JK =12/6=2

$\frac{ \tan(R) }{ \tan(J) } = \frac{ \frac{1}{2} }{2}$

$\frac{ \tan(R) }{ \tan(J) } = \frac{1}{4}$

tan(J)=4.tan(R)

option D

6 0

3 years ago

If f(x) = 5 + 4(x - 4)?,<br> what is f(7)?

grigory [225]

Answer:

Let's solve for f.

x=5+4(x−4)f(7)

Step 1: Flip the equation.

28fx−112f+5=x

Step 2: Add -5 to both sides.

28fx−112f+5+−5=x+−5

28fx−112f=x−5

Step 3: Factor out variable f.

f(28x−112)=x−5

Step 4: Divide both sides by 28x-112.

f(28x−112)28x−112=x−528x−112

f=x−528x−112

Answer:

f=x−528x−112

3 0

2 years ago

The graph shows the motion of two cars starting at different places on a highway. Their speeds can be compared by comparing the

nata0808 [166]

Answer:

Car a travels (300) miles in 6 hours

Car B travels (200) miles in 5 hours

Car A speed is (50) miles per hour

Car B speed is(40) miles per hour.

Car A traveled (faster than) Car B.

The graph for Car A is(steeper than) the graph for Car B

Step-by-step explanation:

$distanc \: = x - y$

where x is starting location and y is the ending location

$speed \: = \frac{distance}{time}$

the rest we see once we have solve for distance and speed of the 2 cars

4 0

3 years ago

Question:

NNADVOKAT [17]

1.) 9(4) + 8(5)

36 + 40 = 74

2.) 2(3) + 8(3)

6 + 24 = 30

3.) 4(5) + 7(5)

20 + 35 = 55

4.) 10(4) + 18(5)

40 + 90 = 130

5.) 2 + 8(1/4)

2 + 2 = 4

6.) 9(1/3) + 8(1/4)

3 + 2 = 5

7.) 3(8) + 7(4)

24 + 28 = 52

8.) 12(1/4) + 16(5)

4 + 80 = 84

8 0

3 years ago

Rule:start at 3 1/8 subtract 3/4

SSSSS [86.1K]

Answer:

2 3/8

Step-by-step explanation:

If what you're saying it 3 1/8 - 3/4 then...

3 1/8 - 3/4

3 1/8 - 6/8

25/8 - 6/8

19/8

2 3/8

6 0

3 years ago