MATHEMATICS MIDDLE SCHOOL

Laura wrote and solved the following expression to find the total number of beads Lina has if there are 6 beads in each packet. Find and correct Laura’s mistake7+4b = 11b
= 11(6)
=66

Answers

Answer 1

Answer:

The number of beads lina has is 31

Laura made a mistake by adding the constant 7 and variable 4b

Solution:

Given that,

Laura wrote and solved the following expression to find the total number of beads Lina has

There are 6 beads in each packet

7+4b = 11b

= 11(6)

=66

From given,

Lina has a total of 7 + 4b beads

Given that, There are 6 beads in each packet

Substitute b = 6

7 + 4(6)

Simplify

7 + 24

Add

Thus, she has a total of 31 beads and not 66 beads

Laura made a mistake by adding the constant 7 and variable 4b

But a constant and variable cannot be added

Answer 2

Answer:

Answer:

ya foot

Step-by-step explanation:

Related Questions

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Is 45/5 equal to a whole number or a mixed number?Please Explain How You know
Whats the difference between linear equations and quadratic equation
Pls help solve this question
#1 What is the value of the expression 7–3? Answers: A. –21B. - 1/343 C.1/343 D. 343 #2What is the value of the expression 1/5^-5? Answers: A. 1/3125 B.1/25 C.25 D. 3125 #3What is the value of the expression 2/4^-3?Answers: A. 1/32 B. 1/6 C.128 D.256 #4 What value of k solves the equation? K^-2=1/64 Answers: A.1/8 B. 8 C. 32 D. 128 #5 What value of n solves the equation? 4^N= 1/64 Answers: A. –3 B. 3 C. 16 D. 256

What is the fraction of -0.45

Answers

move the - sign away

0.45
that is 45 hundereths
45/100
-0.45=-45/100=-7/20

it is -45/100 or simplified to -7/20

Solve −4 = −(−k − 86)+10

Answers

K= 100

You use distributive property

Step 1: −(−k)−1(−86)+10=−4

Step 2: k−1(−86)+10=−4

Step 3: k+86+10=−4

Step 4: k+96=−4

Step 5: k=−96−4

Step 6: Subtract 4 from −96 to get −100.

The first step -4=k-86-10 second- k-76=-4 third step 76-4= 72 substitute 72 in for k 72-76= -4 this is true

You are planning for a breakfast party and need enough milk for 20 people. Each person will drink about 200mL of milk. Which us the bat estimate of the amount of the milk you should prepare: 400mL or 4L?Explain.

Answers

1 liter = 1000 ml
so 4L is the amount of the milk you should prepare

You won't get 400mL because you are giving it to 20 people, and 400 mL would only give enough for 2 people. So 4L.

List 7 cm, 18 mm, 1 m, 3 dm in increasing order of length

Answers

First let's convert all of these into centimeters using the correct conversions:

$7cm=7cm$

$((18mm)/(1))* ((1cm)/(10mm))=1.8cm$

$((1m)/(1)) *((100cm)/(1m))=100cm$

$((3dm)/(1))* ((10cm)/(1dm))=30cm$

Therefore we can rank them in order now:

18mm < 7 cm < 3 dm < 1 m

Martha made 3 birthday cards and she wants to make more. if she makes 5 cards an hour, How many cards will she have after 6 hours?

Answers

Well, since she makes 5 cards in ONE hour, we'll just multiply 5 times 6 to find out the total amount of cards made in 6 hours, which is 30. HOWEVER, we mustn't forget to add the amount of cards BEFORE she began making 5 cards per hour, which is 3, so 30 + 3 = 33. She made 33 cards after 6 hours. c:

Which of the following statements is NOT true? • _ •