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4 years ago

Help asap got to hurry to do my homework cause I have to go some where

Mathematics

2 answers:

VMariaS [17]4 years ago

6 0

Because you are estimating you can round the number:
2149 to 2000
28.95 to 30

Then you multiply them together to get the total money got:
2000 * 30 = 60000

The answer is A) $60,000,
Hope this helps! :)

lawyer [7]4 years ago

4 0

28.95=30
2000 2000*30= 60,000
A) 60,000

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Is the expression 5 + 3x 2always equal to the expression 4x? Explain your answer.

Anna71 [15]

5+3x=4x
only when
x=5
The two expression are only equal at x=5

8 0

3 years ago

For the data in the table tell whether y varies directly with X if it does write an equation for the direct variation

frozen [14]

a) Option B Direct variation, y=1.8x is correct option.

b) Option A Not a direct variation is correct option.

Step-by-step explanation:

a) for the data in the table tell whether y varies directly with X if it does write an equation for the direct variation

The direct variation is represented by:

$y=kx \,\,or\\\frac{y}{x}=k$

We need to find k.

Given the values of x and y in table we will find k. if value of k is constant, so x and y varies directly

$\frac{5.4}{3}=1.8\\\frac{12.6}{7}=1.8\\\frac{21.6}{12}=1.8$

Since value of k is constant i.e 1.8 so, y varies directly with x.

Option B Direct variation, y=1.8x is correct option.

b) For the data in the table tell whether Y varies directly with x if it does write an equation for the direct variation.

The direct variation is represented by:

$y=kx \,\,or\\\frac{y}{x}=k$

We need to find k.

Given the values of x and y in table we will find k. if value of k is constant, so x and y varies directly

$\frac{1}{-2}=-\frac{1}{2}\\\frac{6}{3}=2\\\frac{11}{8}=1.3$

Since value of k is not constant so, y doesn't varies directly with x.

Option A Not a direct variation is correct option.

Keywords: Direct variation:

Learn more about Direct variation at:

#learnwithBrainly

5 0

3 years ago

Solve log 3/2+log8/10-log3o

Ronch [10]

Answer:

$\boxed{−0.074031268}$

Step-by-step explanation:

$if \: this \: is \: your \: question \to \\ \: \frac{3}{2} +log \: ( \frac{8}{10}) -log \: 30 \\ then \: to \: simplify \: we \: \to \\ \frac{3}{2} + log( \frac{ \frac{8}{10} }{30} ) = \\ \\ \frac{3}{2} + log( \frac{8}{300} ) \\ .......................................................\\ now \: lets \: solve \: for \to \: log( \frac{8}{300} ) \\ ....................................................... \\ log( \frac{8}{300} ) \to \\ −1.574031268 \\ so \\ 1.5−1.574031268\\ \boxed{ans = −0.074031268}\\$

8 0

3 years ago

the sum of two numbers is 52 the larger number is 4 more than 2 times the smaller number find both numbers let x be the smaller

pochemuha

Answer:

Smallno. =16

Bug no. =36

Step-by-step explanation:

Y=big number

X=small number

X+Y=52

Y=2X+4

Substitute

X+2X+4=52

3X=48

X=16(small no.)

Y=36(large no.)

Checking:

36+16=52(yay correct)

36=(2*16)+4 (coorrectoo!)

Hope this helps!

6 0

3 years ago

If two numbers represented 2m+1 and 2m+5 have a sum of 74 find m

laila [671]

(2m + 1) + (2m + 5) = 74

4m + 6 = 74

4m = 74 - 6

4m = 68

m = 17

8 0

4 years ago