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Savatey [412]
2 years ago
14

A mistake was made in the steps shown to simplify the expression. Which step includes the mistake?

Mathematics
2 answers:
Oliga [24]2 years ago
5 0

<u>Answer:</u>

  • Step 3.

<u>Step-by-step explanation:</u>

  • In step 3, he/she should've divided 10 by 2 instead of adding 1/5 to 9/5.

<u>Conclusion:</u>

Therefore, Step 3 includes the mistake.

Hoped this helped.

GeniusUser

klasskru [66]2 years ago
3 0
Answer are all correct
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Evaluate the expression -(5/7)^0
NeX [460]

Answer:

1

Step-by-step explanation:

6 0
3 years ago
The numbers a, b and c satisfy a+b+c = 0 and abc = 78. What is<br>the value of (a+b)(b+c)(c+a)?​
djyliett [7]

Answer:

(a+b)(b+c)(c+a)=-78

Step-by-step explanation:

We are given that the numbers a, b and c

a+b+c=0   ....(1)

abc=78    ..... (2)

We have to find the value of (a+b)(b+c)(c+a).

From equation we get

a+b=-c

b+c=-a

a+c=-b

Substitute the values then we get

(a+b)(b+c)(c+a)=(-c)(-a)(-b)

(a+b)(b+c)(c+a)=-abc

Using equation (2) we get

(a+b)(b+c)(c+a)=-78

Hence, the value of (a+b)(b+c)(c+a) is -78.

6 0
3 years ago
Two triangles are similar. The corresponding sides have a ratio of 2:5. If the larger triangle has a side length of 55 centimete
zmey [24]
B (22cm)

2:5
55/5 = 11
11 * 2 = 22
8 0
3 years ago
It's been estimated that if you consume an extra 3,500 calories, you will gain 1 pound of fat. one can of soda contains 40 grams
timama [110]
We know that
1 can of soda---------------> <span>40 grams of sugar
if 1 gram sugar------------------------------------>has 4 calories
40 grams (1 can of soda)-----------------------> X
X=40*4=160 calories
then 
1 can of soda--------------> has 160 calories
</span><span>six-pack of soda every day--------------> 6*160=960 calories every day

in one year------------> 960*365=350400 calories in one year

if 3500 calories----------------> </span><span>1 pound of fat
</span>350400 calories----------------X
X=350400/3500=100.11 pound
In one year she or he will gains 100.11 pound of fat

the answer is 100.11 pound
8 0
3 years ago
Last season the girls' volleyball team had 5 seventh-grade students and 4 sixth-grade students. What is the ratio of sixth-grade
Hoochie [10]

Answer:

A) 4:5

Step-by-step explanation:

A) 4:5

B) 4:9

C) 5:4

D) 5:9

If there are 4 sixth grade students, you can already cross off D because there is no 4 as an option. There are 5 seventh grade students, you can cross off B because there's no 5. So now it's down to 4:5 or 5:4. Since it wants the ration of sixth to seventh, it's 4 to 5.

Hence, the ratio is 4:5, answer A

Hope this helps :)

<em>Stay Cold, </em>

<em>Brook</em>

8 0
3 years ago
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