what is the answer to this math problem(-2.7)(-1.9)

Answer:

21

Step-by-step explanation:

Simplify the ratio 6 : 10

The simplified ratio is 3 : 5.

The ratio is 3:5 now we have to figure out what the ration of 35 is so lets sovle that. Since

3 : 5 = X : 35

Then we know

3/5 = X/35

Multiplying both sides by 35 cancels on the right

35 × (3/5) = (X/35) × 35

35 × (3/5) = X

Then solving for X

X = 35 × (3/5)

X = 21

Therefore

3 : 5 = 21 : 35

Answer:

(0.5, 1 )

Step-by-step explanation:

y = 4x - 1 → (1)

2x + 2y = 3 → (2)

Substitute y = 4x - 1 into (2)

2x + 2(4x - 1) = 3 ← distribute parenthesis and simplify left side

2x + 8x - 2 = 3

10x - 2 = 3 ( add 2 to both sides )

10x = 5 ( divide both sides by 10 )

x = [tex]\frac{5}{10}[/tex] = 0.5

Substitute x = 0.5 into (1)

y = 4(0.5) - 1 = 2 - 1 = 1

solution is (0.5, 1 )

Answer:

Step-by-step explanation:

first subtract 125-180=X you will get   X=55 so then add  X+X+y=180 which x+x+y= is actually  55+55+y=180 but don't add the y just yet add 55+55 then you will get 110+y=180 so then flip it backwards and do y=180-110 and your anwser is  y=70

Answer: -1, 2 and 4

Step-by-step explanation:

Answer:

see explanation

Step-by-step explanation:

Using the identities

tan x = [tex]\frac{sinx}{cosx}[/tex] , sec x = [tex]\frac{1}{cosx}[/tex] , csc x = [tex]\frac{1}{sinx}[/tex] , then consider left side

sinxcosxtanxsecxcscx

= sinxcosx × [tex]\frac{sinx}{cosx}[/tex] × secxcscx ← cancel cosx on numerator/ denominator

= sinx × sinx × [tex]\frac{1}{cosx}[/tex] × [tex]\frac{1}{sinx}[/tex] ← cancel sinx on numerator/ denominator

= sinx × [tex]\frac{1}{cosx}[/tex]

= [tex]\frac{sinx}{cosx}[/tex]

= tan x

= right side , thus proven

Answer:

i believe that the correct answer is 128cm². my answer is explained in the picture attached

Answer:

The slope would be 1

The equation for the line would be y= 1x-2

Step-by-step explanation:

Being that that graph isn't labeled I will assume each block is one unit.

Answer:Search it up

Step-by-step explanation:

Answer:

i believe it is $32

Step-by-step explanation:

Answer:

not sure what type you mean but here are options

Step-by-step explanation:

30+4=34

thirty-four

Answer:

Larissa was more successful

Step-by-step explanation:

Ellen: 2/4 = 1/2

Larissa: 12/16 = 3/4

3/4 > 1/2

Larissa was more successful.

Answer:

Step-by-step explanation:

2/4 = 1/2

12/16 = 3/4

So Larissa was the most successful.

Answer:

-26

Step-by-step explanation:

Dropping here means subtracting. That means that we calculate:

-10 - 16 = -26

Slope, in the form of y = mx + b, is m

[1] 9

    () It is the m

[2] -1/2

    () It is the m

[3] 2

    () add 2x to both sides

[4] 3/4

    () add 4y and subtract 12 from both sides (4y = 3x - 12) and then divide by 4

Have a nice day!

   I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

Answer:

1: x=8/9

2: Y=- x/2-4

3:y=5+2x

4: x=4+ 4y/3

Answer:

D

Step-by-step explanation:

Number of chickens (c) is = 4 times number of horses (4h). c = 4h

Answer:

A

Step-by-step explanation:

Answer:

slope is 2

Step-by-step explanation:

(8-(-8))/(4-(-4))=16/8=2

Answer:

Step-by-step explanation:

θ=85+1=86

or

θ=85-1=84

84°<θ<86°

sin 84<sinθ<sin86

0.994522<sin θ<0.997564

Answer:

I maybe wrong but i think that it is 4 1/30

Step-by-step explanation:

2 1/5=11/5

1 5/6=11/6

6 and 5 LCM is 30

11/5=66/30

11/6=55/30

66/30+55/30=121/30

121/30=4 1/30

Answer:

4[tex]\frac{1}{30}[/tex]

Step-by-step explanation:

An easy way to add two fractions is by finding the LCM of the fractions, then changing the denominators.

LCM - Lowest Common Multiple - Found by taking the sets of each number's multiples, then finding the first number to appear twice.

Let's find the LCM of 5 and 6 so that we can change the fractions to have equal denominators:

5 - 5, 10, 15, 20, 25, 30

6 - 6, 12, 18, 24, 30, 36

The first number to show up twice is 30, so change the fractions to have denominators of 30.

[tex]\frac{1}{5}[/tex] × [tex]\frac{6}{6}[/tex] = [tex]\frac{6}{30}[/tex]

[tex]\frac{5}{6}[/tex] × [tex]\frac{5}{5}[/tex] = [tex]\frac{25}{30}[/tex]

Now, add the fractions:

2[tex]\frac{6}{30}[/tex] + 1[tex]\frac{25}{30}\\[/tex] = 3[tex]\frac{31}{30}[/tex] = 4[tex]\frac{1}{30}[/tex]

Answer:

Try 1.09

Plz let me know if this is right if not I am sorry I tried.

Answer:

144 square yards

Step-by-step explanation:

√16 in^2 = 4 in

4 in x 3 in --> yd = 12 yd = 12^2 yd^2

Answer:

The answer is A, because this expression translates to the number of students on the 6th floor being greater than (due to the < symbol) the number of students of the 1st and 2nd floor combined (due to the + symbol).

Step-by-step explanation:

Answer:

interest earned is $176

Step-by-step explanation:

Interest = Principal x Rate x Time

I = 880 x .04 x 5

I = 176

Answer:

$176

Step-by-step explanation:

Simple interest  = P ( initial money )*r (rate ) *t ( time )

P = $880

r = 4% = 0.04

t = 5 years

Simple interest  = 880 * 0.04 * 5 = $ 176

Interest you earn in 5 years is $176.

Answer:

D. -1 >= d

Step-by-step explanation:

So the arrow is pointing left, so d is less than

Answer:

A

Step-by-step explanation:

I = Prt = r * Pt

divide Pt from both side we get

I/(Pt) = r

Answer:

a

Step-by-step explanation:

I = Prt ( isolate r by dividing both sides by Pt )

[tex]\frac{I}{Pt}[/tex] = r , that is

r = [tex]\frac{I}{Pt}[/tex] → a

Answer:

x= 4

Step-by-step explanation:

Answer:

{−5}

hope it helps, tell me if im wrong! be safe! :D

itll take 16 weeks to save for the laptop.

Answer:

3. 5>2x=17

I believe thats what I can provide for now