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Zarrin [17]
3 years ago
13

How do I make a ten to find the sum

Mathematics
2 answers:
Naddika [18.5K]3 years ago
5 0
Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 – 4 = 13 – 3 – 1 = 10 – 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 – 8 = 4); and creating equivalent but easier or ...
fgiga [73]3 years ago
4 0
Meaning 10 times 4 witch equals 40
pretty much adding a zero at the end of any number

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What is the length of AC?<br><br><br> 3 ft<br><br> 4 ft<br><br> 9 ft<br><br> 18 ft
iragen [17]

Answer: The length of AC is 18 ft.

Step-by-step explanation:

By the given diagram,

AM = MB and CN = NB

M and N are the mid points of the sides AB and CB respectively,

Thus, by the mid point theorem,

MN ║ AC,

By the alternative interior angle theorem,

∠BMN ≅ ∠BAC

∠BNM ≅ ∠BCA

Thus, by AA similarity postulate,

ΔBMN ≅ ΔBAC

By the property of similar triangles,

\frac{BM}{BA}=\frac{MN}{AC}

\frac{BM}{BM+MA}=\frac{MN}{AC}

\frac{4}{4+4}=\frac{9}{AC}

\frac{4}{8}=\frac{9}{AC}

4AC=72\implies AC = 18\text{ ft}

Thus, The length of AC is 18 ft.

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3 years ago
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Savatey [412]
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3 years ago
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How do you subtract 4 4/9 - 2 7/9=
Daniel [21]
You would need to turn 4 4/9 and 2 7/9 into mix numbers. This would leave you with 50/9 - 25/9. Since the denominators are the same  you just need to subtract the numerators 50 - 25 = 25. So the answer is 25/9
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I need help!!!!!!!!!!!!!!!!!!!
WINSTONCH [101]
I can't help without a question.
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3 years ago
What is the value of x in the equation ? (image below)
aev [14]

Answer: 2

Step-by-step explanation:

2.5(6x-4)=10+4(1.5+0.5x) [Work out the brackets]

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3 years ago
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