Mailynn, Grace and their friends went out for lunch. Their total bill was $52.30. If they want to leave a 15% tip, how much money should their gratuity (tip) be?

Answer:24

Step-by-step explanation:

Sum of their ages is 60 yr. As such

7x + 3x = 60

10x = 60

x = 60 / 10

x = 6

The rationale is 6, therefore

Father's age is 7x = 7 × 6= 42 years

Son's age is 3x = 3 × 6 = 18 years

Difference in their ages

42 - 18 = 24 years

Answer: 7/16

Step-by-step explanation:

i got it right

Answer:  C.  1/r^10

Step-by-step explanation:

when you are dividing two exponents, you have to subtract them.

Subtract numerator by denominator: 2 - 12 = -10

when you have negative exponent you have to put a one at the numerator

Answer: 1/r^10

Answer:

I can’t even do my own work✋

Answer:

y=-2

Step-by-step explanation:

2x-y=12

-

x+3y=-1

2)

2x-y=12

-

2x+6y=-2

3)

-7y=14

y=-2

Answer:

6[tex]y^{9}[/tex] - 24[tex]x[/tex] + 6[tex]y[/tex] + 9

Step-by-step explanation:

Combine Like Terms:

= 9 + −12x + 6[tex]y^{9}[/tex]+ −12x+6y

= (6[tex]y^{9}[/tex]) + (−12x+−12x) + (6y) + (9)

= 6[tex]y^{9}[/tex] + −24x + 6y + 9

Answer:

4 meters

Step-by-step explanation:

Given that :

Initial elevation of butterfly = 20 meter

Change in elevation from initial height = negative 16 m = - 16 meter

Final elevation can be obtained by taking the sum of initial elevation and the change in elevation

(20 m + (- 16 m))

(20 m - 16 m)

= 4 meters

Answer: -3

Step-by-step explanation: It's farther to the left than -2 and 0 so it's smaller and negative

Answer:

1/8x-12

Step-by-step explanation:

Given the expression

1÷2[2x + 2(x - 3)]

Open the bracket

= 1÷(2(2x)+4(x-3))

= 1÷(4x+4x-12)

= 1÷(8x-12)

= 1/8x-12

Hence the answer is 1/8x-12

Answer: 18.29%

Step-by-step explanation:

There are 350 students. Out of these students, 70 signed up for the Army, 64 for the Airforce, 56 for the Navy and 160 for the Marines for a total of 350.

The percentage of students who signed up for the Airforce out of the total can be calculated by:

= number of students (airforce) / total number of students * 100

= 64/350 * 100

= 18.29%

Answer:

3 AB+BC=AC

Step-by-step explanation:

Because they add up to get AC

Answer:

None

Step-by-step explanation:

Answer:

100º

Step-by-step explanation:

Find angle3 which is 80º

All lines are 180º

which means angle3+ angle4 is 180º

180º - 80º

= 100º

Answer: B. 100°

Step-by-step explanation:

Since triangles contain angles that add up to 180°, angles 3 is 80°. Since Straight Angles are 180°, it means that angle 4 is 180-80, which equals 100°.

Answer: 10 large melons

Step-by-step explanation:

Carl saw 25 melons at a store.

Of these 25, 15 were small and the rest were large.

The number of large melons will have to be the whole total of 25 melons less the number of small melons which is 15:

= 25 total melons - 15 small melons

= 10 large melons

Answer:

need more info

Step-by-step explanation:

Answer:

61

Step-by-step explanation:

Answer:

False

Step-by-step explanation:

The graph of a linear function is a straight line. Graphically, where the line crosses the x -axis, is called a zero, or root. Algebraically, a zero is an x value at which the function of x is equal to 0 . Linear functions can have none, one, or infinitely many zeros.

Answer:

True.

Step-by-step explanation:

A linear function has the exponent of 0 or 1. A function with a degree of 2 would be quadratic and an exponent of 3 would be cubic.

D. deposit

kaakakashshhhshssbs

Answer:

the answer is -50

hope this helps <3

Answer: 200

Step-by-step explanation:

since 10 is one part

10 x 20 = 200

The real length of the car will be 200 units.

To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.

Given that;

A scale of 1:20 is used to make the drawing of a car.

And, The length of the drawing is 10.

Now,

Since, The length of the drawing is 10.

And, The used scale = 1 : 20

Hence, The real length of the car = 20 × 10

                                                    = 200 units

Learn more about the multiplication visit:

https://brainly.com/question/28768606

#SPJ2

Answer:

Here i will simplify 49/7 to its simplest form and convert it to a mixed number if necessary.

In the fraction 49/7, 49 is the numerator and 7 is the denominator.

do this by first finding the greatest common factor of 49 and 7, which is 7.

Then, divide both 49 and 7 by the greatest common factor to get the following simplified fraction:

7/1

Therefore, this equation is true:

49/7 = 7/1

If the numerator is greater than or equal to the denominator of a fraction, then it is called an improper fraction. In that case, you could convert it into a whole number or mixed number fraction.

7/1 = 7

Step-by-step explanation:

Answer:

$70

Step-by-step explanation:

Step one:

given data

Miguel spends $35 a day for 5 days

in all he spends= 35*5=$175

He earns $21 a day for 5 days

in all he earns = 21*5= $105

Step two:

He will end up with less money

= 175-105

=$70

Answer:

1+3

Step-by-step explanation:

Since there is two minus signs, you can turn the minus sign to addition and turn the negative sign positive. Subtracting a negative is the same as adding a positive.

Answer:

1 + 3

Step-by-step explanation:

Any number subtracting a negative is the same as addition.

Answer:

64-18+2

Hope this helps...

Answer:

Then the answer to the system is the point (-1, 3)

which corresponds to x = -1 and y = 3

Step-by-step explanation:

Start by dividing the first equation by 3 on both sides, and get:

x + y = 2

now multiply it by 5 in order to be able to eliminate the term in y in the combining of both equations:

5 x + 5 y = 10

+

9 x - 5 y = - 24

___________

14 x + 0 = -14

solve for x by dividing both sides by 14:

x = -14/14 = -1

Use the x = -1 answer in the equation 3 x + 3 y = 6 and solve for y:

-3 + 3 y = 6

add 3 on both sides:

3 y = 9

divide both sides by 3 to isolate y:

y = 3

Then the answer to the system is the point on the plane (-1, 3)

which corresponds to x = -1 and y = 3

Answer:

10 x + 27 : 5

Step-by-step explanation:

Just Simplify  

Answer:

37:5

Step-by-step explanation:

Answer:

Circumference=C=377 mm

Step-by-step explanation:

[tex]C=\pi d[/tex]

d=120 mm

C=3.14*120=377 mm

Answer:

4.52secs

Step-by-step explanation:

Given the height of a falling object expressed as;

d=3t+5t^2

If the object travel 84 feet, we are to find the time t it takes to travel. On substituting;

84 = 3t+5t^2

3t+5t^2 - 84 = 0

t = -5±√25-4(3)(-84)/2(3)

t = -5±√25+1008/6

t = -5±32.14/6

t = -5+32.14/6

t = 27.14/6

t = 4.52 secs

Hence it will take 4.52secs for the object to travel 84feet

Answer:

0.0946km²

Step-by-step explanation

Area of the farmland owned = 0.037km²

Area of farm land bought = 9600m²

Convert m² to km²

1m² = 1e-6 km²

9600m² = 0.000001 * 9600

9600m² = 0.0576km²

Total area on km² = 0.037km²+0.0576km²

Total area on km²  = 0.0946km²

Answer:

part a - 122.39

part b - 91.79

Step-by-step explanation:

Answer:

122.57

Step-by-step explanation:

7.50 x 8= 60

9.25 x 9= 83.25

60 + 83.25= 143.25

143.25 - 20.68= 122.57