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3 years ago

Hi guys pleas help me ;((

Mathematics

1 answer:

vova2212 [387]3 years ago

7 0

Answer:

the first bullet, M+0.15m

Step-by-step explanation:

Think about it this way:

M is the total amount of money you pay for the meal.

0.15m is the tax calculation, 0.15 x M= a 15% tip

Because a tip means added money on top of the total cost of the meal, you have to add both of them together.

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Mary has $65,000 to invest in two accounts. The first account is a private savings offering 6% annual interest and the second ac

const2013 [10]

Answer:

first account with 6% interest ( x ) = $46000

second account with 4% interest ( y ) = $19000

Step-by-step explanation:

Principal = $65000

first interest rate = 6%

second interest rate = 4%

assuming ; X = money invested in first account , Y = money invested in second account

hence :

( 65000 - y ) * 6% + ( 65000 - x ) * 4% = 3520

3900 - 0.06 y + 2600 - 0.04 x = 3520

0.04 x + 0.06 y = 3900 + 2600 - 3520

0.04 x + 0.06 y = 2980 ----- ( 1)

x + y = 65000 ------- ( 2 )

solve equation 1 and 2 simultaneously by elimination method

0.04 x + 0.06 y = 2980 ------ ( 3 )

0.06 x + 0.06 y = 3900 ------- ( 4 )

subtract equation 3 form equation 4

0.02 x = 920 , hence x = $46000

therefore y = $65000 - $46000 = $19000

6 0

3 years ago

PLS HELP ASAP. NO LINKS <br> When z= 9, the value of z2 + 1 is

elena55 [62]

Answer is 82

substitute z for 9

9^2 = 81+ 1= 82

6 0

3 years ago

Explain how to find the product 3^5 x 3^2 using rules for exponents.

AlekseyPX

Step-by-step explanation:

$\because \: {a}^{m} \times {a}^{n} = {a}^{m + n} \\ \\ \therefore \: {3}^{5} \times {3}^{2} = {3}^{5 + 3} = {3}^{8} = 6,561 \\$

7 0

3 years ago

Which two points on the number line are opposites? A number line going from negative 2 to positive 2 in increments of 1. There a

Ira Lisetskai [31]

Answer:

Points B and C are opposite

Step-by-step explanation:

0 on the number line marks the center of the number line. To the right on the number line are positive integers and to the left from zero are negative integers.

Points B and C are opposite because they are each half way between 0 and 1 on the right and 0 and -1 on the left

3 0

3 years ago

Read 2 more answers

How do I get the value of a function?

Len [333]

Answer: f(x)=mx+b

f(x)=x+7

if x=2 then

f(2)=2+7=9

A function is linear if it can be defined by

f(x)=mx+b

f(x) is the value of the function.

m is the slope of the line.

b is the value of the function when x equals zero or the y-coordinate of the point where the line crosses the y-axis in the coordinate plane.

x is the value of the x-coordinate.

5 0

3 years ago