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Vlad1618 [11]
3 years ago
15

Maya solved an equation incorrectly, as shown below: Step 1: 4x = 28 Step 2: x = 28 – 4 Step 3: x = 24 Which statement best expl

ains why Step 2 is incorrect in Maya's solution? (1 point)
A: She did not add 4 to 28.
B: She did not multiply 28 by 4.
C:She did not divide 28 by 4.
D:She did not multiply 28 four times.
Mathematics
2 answers:
sukhopar [10]3 years ago
7 0
Maya has to divide by 4, not subtract 4 <span>C:She did not divide 28 by 4. </span>
nikdorinn [45]3 years ago
4 0

Answer:

Option C - She did not divide 28 by 4.

Step-by-step explanation:

Given : Maya solved an equation incorrectly, as shown below:

Step 1: 4x = 28

Step 2: x = 28 - 4

Step 3:x = 24

To find : Which statement best explains why Step 2 is incorrect in Maya's solution?

Solution :

First we solve the expression again to find the mistake.

Step 1: 4x = 28

Step 2: x = \frac{28}{4}

Step 3: x = 7

Thus, by the above steps it is clear that she did not divide 28 by 4 in step 2.

Therefore, Option C is correct.

The required statement that best explains her mistake in steps 2 is She did not divide 28 by 4.

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taurus [48]
I think it might be 90 degrees
6 0
3 years ago
Find the two correct values of x in the equation 3x² = y when y = 75.​
valentina_108 [34]

Answer:

5 and -5

Step-by-step explanation:

3x² = 75

x² = 75/3

x² = √25

x = 5 and - 5

3 0
2 years ago
The sum of a number squared and five
Pie

Answer:

(x+5^3 is the answer of this question

5 0
3 years ago
If a cat with short brown hair (llBb) is crossed with a cat with long black hair (Llbb), what is the likelihood that there will
Advocard [28]

Bb = brown hair phenotype

bb = black hair phenotype

we see that B = brown hair is the dominant gene while b = black hair is the recessive gene

----------------------------------

ll = short hair, this is a lowercase L

Ll = long hair

In this case, l = short hair is the recessive gene while L = long hair is the dominant gene.

----------------------------------

Check out the diagram below to see the dihybrid crosses for each of the hair color and hair length genotypes. From there, I show all of the genotypes possible for any offspring. Those genotypes are

  • LlBb  = long brown hair (comes up 4 times)
  • Llbb  = long black hair (comes up 4 times)
  • llBb  = short brown hair (comes up 4 times)
  • llbb  = short black hair (comes up 4 times)

-----------------------------------

If we are talking about 1 offspring, then it is not possible for him/her to have both "long black hair AND short brown hair" as the instructions state. So let's consider two offspring instead.

The probability of having long black hair is 4/16 = 1/4 as there are 4 cases of Llbb out of 16 cases total. Similarly, the probability of getting llBb is 4/16 = 1/4 as well, for pretty much the same reasons.

The probability of having both events occur is (1/4)*(1/4) = 1/16

The multiplication of probabilities is valid because the two events are independent.

==============================================

<h3>Final Answer: A) 1/16</h3>

5 0
3 years ago
For four weeks in June Cameron baked 3 1/4 miles each week and swim 2 1/2 miles each week for three weeks in July he baked 4 3/4
Tems11 [23]
For June:
 Bike:
 (4) * (3 1/4) = 13 miles
 Swim:
 (4) * (2 1/2) = 10 miles
 Total:
 13 + 10 = 23 miles
 For July:
 Bike:
 (3) * (4 3/4) = 14.25 miles
 Swim:
 (3) * (3 1/2) = 10.5 miles
 Total:
 14.25 + 10.5 = 24.75 miles
 The difference between both months is:
 24.75 - 23 = 1.75 miles
 Answer:
 
the total distance Cameron bike and swim in July compared to the total distance he bike in swim in June was 1.75 miles greater
6 0
3 years ago
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