Tamara rewrote the expression 0.2(4+1.4y - 2.1). Her steps are shown.
Step 1: 0.2(4+1.4y - 2.1)
Step 2: 4.2+1.6y-1.9
Step 3: 4.2-1.9+1.6y
Step 4: 2.3+1.6
Which statement identifies and explains the first mistake Tamara made?

Please helppp

Answer:

46

Step-by-step explanation:

82 times 12=984(sum of total scores)

10 times 84=840(sum of scores with 2 removed)

984-840-98=46(ouch)

Answer:

48

Step-by-step explanation:

Multiply 0.2 × 240 = 48.

It's a very biased coin, so the outcome will be considerably less than the 120 we would expect from a fair coin.

$720.00

-

-

30×10=300

and

30×14=420

(you multiply the money with the amount of hours they spent working)

300

+ 420

----------

$720

hope this helps you out

Answer:

Below in bold.

Step-by-step explanation:

it is a right triangle so one angle = 90 degrees.

The other angle = 180 - (37 +90)

= 180 - 127

= 53 degrees.

Linear pairs add up to 180.

So other angle = 18--53

= 127 degrees.

Answer:

3 7/9

Step-by-step explanation:

I'm dum i can't answer srry im no help

Answer:

77r - 2077

Step-by-step explanation:

To find the the sum of (23m−34)( 3 2 ​ m− 4 3 ​ ) and (−16m−r)(− 6 1 ​ m−r)

First open the bracket

23m × 32m - 23m × 43 - 34 × 32m + 34 × 43

736m^2 - 989m - 1088m + 1462

736m^2 - 2077m + 1462

Open the second bracket

16m × 61m + 16m × r + r × 61m + r × r

976m^2 + 16mr + 61mr + r^2

976m^2 + 77mr + r^2

Adding both equations together

736m^2 - 2077m + 1462 + 976m^2 + 77mr + r^2

1712m^2 + 77mr - 2077m + 1462 + r^2

1712m^2 + m( 77r - 2077 ) + 1462 + r^2

Therefore The coefficient of m is 77r - 2077

Answer:

there are two different, real roots.  

Step-by-step explanation:

The coefficients of this quadratic are {1, -7, -8}.  Let's find the discriminant, b^2 - 4ac.  In this case a = 1, b = -7 and c = -8 and so the discriminant value is

(-7)^2 - 4(1)(-8), or 49 + 32, or 81.

Because the discriminant is positive, we know immediately that there are two different, real roots.  

We are not asked to find the roots, but let's do it anyway:

      -(-7) ± √81

x = ------------------ => x = 8 and x = -2 (which are real and different from

              2                                           one another).

Answer:

(2x+1) (x+4)

Explanation:

The idea is to break down the middle term into two monomials which can be used in the factorization process. Note that  

2.4=8=8.1 , and that we may write 9=8+1 , which may help us in the process.

Let us write:

2x^2+9x+4

=2x^2+8x+x+4

=2x(x+4)+(+4)

=(2x+1)(x+4)

Answer:

Potential

Step-by-step explanation:

Answer: kid i d k  to be sorry

Step-by-step explanation:

Answer:

angle 5 is 149

angle 8 is 31

Step-by-step explanation:

since angle three and five are diagonal from each other on opposite sides they will have the same measurements.  since angle eight is on the same side as angle five the total of the two angles has to equal 180

hope this helps

Answer:

x=42°

Step-by-step explanation:

We know that 2 of the legs are congruent, so the angles opposite them will be congruent.

The angles of a triangle add up to 180°

This can be represented by [tex]96+2x=180[/tex]

[tex]2x=84[/tex]

[tex]x=42[/tex]

Hope this helps :-)

Answer: 42 degrees

Step-by-step explanation: Since this is an isosceles triangle, your remaining two angles will be equal

There are 180 degrees in any triangle

Since you have already used 96 degrees, you must subtract to find what is remaining

180-96=84

Since your remaining two angles are equal, you can half 84 to find your answer

84/2=42

Both x and your one remaining angle should be 42

X=42

Answer:

5a/3b

Step-by-step explanation:

Step-by-step explanation:

value of b is 73 (reason : sum of triangles)

a= 34 ( reason:180-73-73=34)

Answer: 73+73=146, 180-146= 34°

Step-by-step explanation:

b is parallel to 73, b= 73°

c = 34°

Answer:

4 x 8 = 32

11 - 8 = 3

5 x 3 = 15

15 / 2

7.5

32 + 7.5 = 39.5

Step-by-step explanation:

Answer:

4 x 8 = 32

11 - 8 = 3

5 x 3 = 15

15 / 2

7.5

32 + 7.5 = 39.5

Answer:

40 did not vote

6000 people did not vote

Step-by-step explanation:

1 % of 15,000 = 150

150 * 40 = 40% of 15,000 = 6000

Answer:

It would be 2/6 < 2/5.

Answer:

2/5 > 2/6

Step-by-step explanation:

2/5 is greater than 2/6 because the denominator 5 is less than 6 meaning that the denomonator 5 has a larger section than the denominator 6.

Answer: a

Step-by-step explanation:

Answer:

the answer is A

Step-by-step explanation:

obtaining food

Answer:

V= π r² h

Step-by-step explanation:

$3,600

Step-by-step explanation:

You'd multiply 1,500 with .20 which equals 300. You'd then multiply 300 and 12 together to make $3,600.

Answer:

39 squared meters

Step-by-step explanation:

Answer:

4, 3.5, 4.5, 4.2, and 3.7

Step-by-step explanation:

It's math

Answer:

25 miles

Step-by-step explanation:

175/7 = 25 miles

The jet will fly 25 miles in one minute.

Answer:

6

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

y = mx + b

b is the y-intercept. In your equation, 6 is in the b place so that is your y-intercept. Hope this helps, thank you :) !!

Answer:

10 easy levels and 10 difficult levels

Step-by-step explanation:

Given data

let the number of easy levels be x

and the number of difficult levels be y

so

x+y= 20----------1

and

3x+5y= 80------2

from 1

x=20-y

put this in 2

3(20-y)+5y= 80

60-3y+5y=80

2y=80-60

2y=20

y= 20/2

y= 10

put y= 10 in 1

x+10=20

x=20-10

x= 10

Hence Kiran played 10 easy levels and 10 difficult levels

Answer:

1. (a) 20 (b) 21 (c) 36 (d) 42 (e) 45 (f) 18

(g) 28 (h) 49 (i) 40 (j) 8 (k) 9 (l) 4

(m) 7 (n) 7 (o) 9 (p) 0 (q) 0 (r) 0

2. (a) 3 (b) 7 (c) 4 (d) 8 (e) 3 (f) 4 (g) 9

(h) 7 (i) 3 (j) 7 (k) 4 (l) 5 (m) 2 (n) 4

(o) 7 (p) 0 (q) 0 (r) 0

3. 24

4. 27

5. (a) 16 (b) 28 (c) 32

6. (a) 6 (b) 3 (c) 4

7. 8

8. (a) 35 (b) 14 (c) 42

9. (a) Daniel 70p, Joel 56p (b) Daniel has 14p more than Joel

10. (a) 80 (b) 64 (c) 40

11. £6

12. (a) 9 (b) 7, with 1 left over

13. Team A: 7, Team B: 21, Team C: 14, Team D: 14 14. (a) 7 (b) 5

Step-by-step explanation: