Sarah was thinking of a number. Sarah doubles it, then adds 4 to get an answer of 97.7. What was the original number?

Answer:

13.6

Step-by-step explanation:

4 × 3.40 = 13.6

I hope I have helped

Step-by-step explanation:

Given that,

a + 2b = 17

Also,

2a + b = 4

By adding the above expressions we get,

a + 2b + 2a + b = 17 + 4

3a + 3b = 21.

3 (a + b) = 21

a + b = 21/3

a + b = 7 Let us take 'b' = 10

a + 10 = 7

a = 7 - 10

a = -3

Now let's check by verifying by putting a = -3 and b = 10 in the previous expressions

a + 2b = 17

-3 + (2 × 10) = 17

-3 + 20 = 17

17 = 17

2a + b = 4

(2 × -3) + 10 = 4

-6 + 10 = 4

4 = 4

Therefore, a = -3 and b = 10 [(-3,10)] is the solution.

Answer:

y=-x-2

             kkkkjkjkjkjkjkj

Answer:

3 and a half hours

Answer:3.5 hours

Step-by-step explanation:

6 acre= 1 hour

60 min ÷6= 10 min for 1 acre

10 ×21= 210

210÷60=3.5 hours

Answer:

0/0=0. 1/1=1.

Step-by-step explanation:

i passed grade 1.

Answer:

1) 0/0 = 0

2) 1/1 = 1

Step-by-step explanation:

hope this helps

Answer:

Step-by-step explanation:

3,249

Answer:

360

Step-by-step explanation:

So, here's what we know...

Andres has 3,240 cookies and is putting them in boxes and wants 9 cookies in each.

To solve this, the easiest way is to divide 3,240/9. Since Andres is splitting putting 9 cookies in a box. The equation to solve this would be...

3,240 cookies ÷ 9 cookies per box = x boxes

Now, let's do the math!

3,240 ÷ 9 = 360

So, Andres used 360 boxes!

Hope this Helps! :)

Have any questions? Ask below in the comments and I will try my best to answer.

-SGO

Answer:

no.

Step-by-step explanation:

No. Because, 5 is an integer, that's why it's not irrational.

Answer:

D. 19

Step-by-step explanation:

x+5 has to equal half of the base(3x-9)

I tried everything else. Those answers didn't work. 3*19-9=48 and 19+5=24

48/2=24 Therefore, the answer is D, 19

Answer:

Step-by-step explanation:

Given the function f(x)=2x^2-4x-16

To know the amount of roots that the function have in common, we need to first factorize the expression as shown;

f(x)=2x^2-4x-16

f(x)=2x^2-8x-16

Let f(x) = 0

0 =2x^2-4x-16

2x^2-4x-16 = 0

Divide through by 2;

x^2-2x-8 = 0

x^2 - 4x + 2x - 8 = 0

x(x-4)+2(x-4) = 0

(x+2)(x-4) = 0

x = -2 and 4

Hence the roots of the function are -2 and 4. They did not have any common roots

Answer:

f and g share the same root(s).

Step-by-step explanation:

The equation of this problem is:

0.07m + 10 ≥ 105.27

Subtract 10 from both sides:

0.07m ≥ 95.27

Divide 0.07 on both sides:

m ≥ 1,361

Therefore, the number of minutes that Kaitlyn acquires each month is greater than or equal to 1,361 minutes.

Hope this helps!!

Kay

The possible number of minutes Kaitlin has used her phone in a month is 1361 minutes or more.

Let's set up an inequality to represent Kaitlin's monthly charges. We know that the total cost, C, for the month is the sum of the monthly fee ($10) and the additional charge based on the number of minutes used ($0.07 per minute, which can be written as 0.07m, where m represents the number of minutes used).

So, the inequality can be written as: C = 10 + 0.07m

Now, we are given that the least amount she has been charged in a month is $105.27. Therefore, we can write the inequality:

C ≥ 105.27

Substitute the expression for C from the first inequality: 10 + 0.07m ≥ 105.27

Now, solve for m:

Subtract 10 from both sides of the inequality:

0.07m ≥ 105.27 - 10

0.07m ≥ 95.27

Finally, divide both sides of the inequality by 0.07:

m ≥ 95.27 / 0.07

m ≥ 1361

To know more about possible number ;

https://brainly.com/question/29765042

#SPJ2

Answer:

400 Tiles

Step-by-step explanation:

20 x 20 = 400

(Length x Width)

Answer:

400

Step-by-step explanation:

Enough that you will need a large piggy bank to take money out of.\

There are 4 squares of equal size that will fit the floor of a 20 by 20 foot room.

Therefore you will need 4 * 100 = 400 tiles.

You could do it by noting that the floor has 20 by 20 tiles which is 20^2 which is 400.

Answer:

Is this in a different language?

Step-by-step explanation:ok:)

Answer:

Formula for the probability of A and B (independent events): p(A and B) = p(A) * p(B). If the probability of one event doesn't affect the other, you have an independent event. All you do is multiply the probability of one by the probability of another.

Step-by-step explanation:

Answer:

you are rigjt

Step-by-step explanation:

im a g yeeeeeeee

Step-by-step explanation:

mean = sum of observation/ no. of observation

mean = 3+5+6+4+7+3+9+8/ 8

Answer:

3+5+6+4+7+3+9+8/8

45/8

5.625

Answer: which side is a? I can’t answer the question without knowing the sides

Step-by-step explanation:

Answer:

1. A) OPS is congruent to RSU

2. C) RSP is congruent to TSU

Step-by-step explanation:

1. Since OQ and RT are parallel lines that are cut across by the transversal line, NU, therefore, angle OPS and angle RSU are corresponding angles formed. Corresponding angles are congruent.

✅Therefore: A) OPS is congruent to RSU. OPTION A IS TRUE.

❌OPS and RSP are consecutive interior angles. They are not congruent. They are supplementary. So, option B is NOT TRUE.

❌OPS and OPN are linear pair angles. Linear pair angles are not congruent. They are supplementary. Therefore, OPTION B IS NOT TRUE.

OPS and TSU are also not congruent.

2. Angle RSP and angle RSU are vertical angles. Vertical angles are congruent. Therefore, the statement that IS TRUE is:

C) RSP is congruent to TSU

Answer:

[tex]F(t)=Ts+(T0-Ts)^{e-0.2t[/tex]

Step-by-step explanation:

Newton's law of cooling states

"that the temperature of a body changes at a rate proportional to the difference in temperature between the body and its surroundings"

Newton's Law of Cooling is given by the formula

[tex]F(t)=Ts+(T0-Ts)^{e-kt[/tex]

Where

F( t )  is the temperature of the object at a given time  t

T s is the surrounding temperature

T 0  is the initial temperature of the object

k is the constant

Given k=0.2

Hence the expression is

[tex]F(t)=Ts+(T0-Ts)^{e-0.2t[/tex]

Answer:

30 miles per hour

Step-by-step explanation:

i took the test

Answer:

50 miles per hour

Step-by-step explanation:

I actually took the quick check

Answer:

<FEA is 70 degrees. It is already given.

Answer:

One time

Step-by-step explanation:

(5x2=10) so 5x1=6

Answer:

13 in

Step-by-step explanation:

It’s a right triangle, so use the Pythagorean Theorem.

12²+5²=c²

144+25=c²

169=c²

√169=c

13=c

Answer:

It is a linear function because there is a constant rate of change in both the input and output values.

Step-by-step explanation: I took the test

Answer:

the value of y is 3 more than twice x

Step-by-step explanation:

we find the slope is 2 because 4/2=2

y=2x+b

we put in the first point (1,5)

5=2+b

b=3

y=2x+3

Answer:

i think its c

Step-by-step explanation:

because 4 times 1 is 4 and if u add 1 than u get 5 which is y

im not sure if this is right lmk

Answer:

18y + 2z

Step-by-step explanation:

So first things is first, arrange all terms with the same degree.

8y + 10y - 3z + 5z + 2 - 2

Next combine like terms for everything

8y + 10y = 18y cuz 8 + 10 is 18.

-3z + 5z = 2z cuz -3 + 5 = 2

2 - 2 = 0 cuz that's a rule in math.

So the final answer is 18y + 2z.

You don't have a whole number cuz it is 0. You can put it there if you want as well.

18y + 2z + 0

Answer:

17c + 9 = 10c + 9 - 7c

COMBINE LIKE TERMS

10c + 7c = 17c

9 IS NOT A LIKE TERM, SO WE LEAVE IT ALONE

Answer:

btw i am pretty sure thats physics

Answer:

The circumference of a circle is C = 2πr^2 (2nd power) Radius (r) is the distance from the center of the circle to the outside of it. To find radius divide the diameter (d) by 2. The diameter (d) of a circle is the radius (r) multiplied by 2. To find the diameter (d) you need to do C ÷ π.

For example):

Finding diameter - 76/3.14 = 24.19 (d)

Finding radius - 24.19/2 = 12.095 (r)