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lakkis [162]
2 years ago
15

里

Mathematics
1 answer:
Elden [556K]2 years ago
8 0

Answer:

Step-by-step explanation:

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Pls help I will mark brainleist!!show all work!
vladimir1956 [14]

Answer:

Pants cost $20 and tee-shirts $10.

Step-by-step explanation:

For Sam 3t + 2p = 70

For Jessica 4t + p = 60

Take 2 times Jessica's equation and subtract Sam's

8t + 2p = 120

3t + 2p = 70

5t = 50

t = 10

3(10) + 2p = 70

30 + 2p = 70

2p = 40

p = 20

7 0
3 years ago
Find the hcf of 15a²b² and -24ab | plzzz solve
tino4ka555 [31]

Answer:

\large \boxed{\sf \ \ \ 3\cdot a \cdot b \ \ \ }

Step-by-step explanation:

Hello,

First of all, let's find the factors of these two numbers and I will put <u>in boxes the common factors.</u>

15a^2b^2=\boxed{3}\cdot 5\cdot \boxed{a} \cdot a \cdot \boxed{b} \cdot b \\ \\ \\-24ab=(-1)\cdot 2 \cdot \boxed{3} \cdot 4 \cdot \boxed{a} \cdot \boxed{b}

The Highest Common Factor (HCF) is found by finding all common factors and selecting the largest one. So, in this case, it gives

\large \boxed{\sf \ \ \ 3\cdot a \cdot b \ \ \ }

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

5 0
3 years ago
Find the standard form of the equation of the parabola with vertex at the origin focus (-2,0)
svp [43]
Vertex = (0, 0)
focus = (-2, 0)
p = -2 - 0 = -2
Required equation is (y - k)^2 = 4p(x - h); where (h, k) = (0, 0), the vertex
(y - 0)^2 = 4(-2)(x - 0)
y^2 = -8x

Required equation in standard form is x = -1/8 y^2
7 0
3 years ago
Factorise fully 21x² +25x =4​
Vitek1552 [10]
X= 1/7, -4/3
________
6 0
2 years ago
Which values from the set {−6,−4,−3,−1,0,2} satisfy this inequality?
Vladimir [108]
-12x+3 greater than or equal to 5
-12x greater than or equal to to 2
To turn the negative sign of -12x into positive, we multiply both sides by minus, which shifts the inequality sign.
So, 12x less than or equal to 2
x is less than or equal to 1/6
Therefore, 0, -1, -3, -4 and -6 satisfy this inequality.
3 0
3 years ago
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