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katrin2010 [14]

2 years ago

15

Am I doing this right I’m trying to help my little brother with his math homework but I don’t remember how to do this and he wan

ts me to use the “cake method” (LCM stands for least common multiple)

1 answer:

NeX [460]2 years ago

5 0

Answer:

The least common multiple is 30. Hope that helps!!

Step-by-step explanation:

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write the ratio as a fraction in simplest form, with whole numbers with a numerator and a denominator 16 g to 40 g

kobusy [5.1K]

16:40 as a fraction is 16/40. 16/40 is 4/10 simplified

8 0

3 years ago

Read 2 more answers

earned $4200 and earned $174 in interest if one earns 3.5% and the other 4.5 % how much was invested at each rate

Leno4ka [110]

X + y = 4200 so x = 4200 - y
0.035x + 0.045y = 174

substitute x = 4200 - y into 0.035x + 0.045y = 174

0.035x + 0.045y = 174
0.035(4200 - y) + 0.045y = 174
147 - 0.035y + 0.045y = 174
0.01y = 27
y = 2700

x + y = 4200
x = 4200 - 2700
x = 1500

answer

$1500 in <span>3.5%
$2700 in 4.5%</span>

8 0

3 years ago

Chemists use pH as a measure of acidity or alkalinity of a solution. It uses the concentration of hydrogen ions H+ in a logarith

SpyIntel [72]

Answer:

$g(f(d)) = -dlog_{10}(0.5 * 10^{-4})$

Step-by-step explanation:

Given

$f(d) = (0.5 * 10^{-4})^d$

$g(H+) = -log_{10}(H+)$

Required

Find the composite function g(f(d))

We have:

$g(H+) = -log_{10}(H+)$

Substitute f(d) for H+

$g(f(d)) = -log_{10}(f(d))$

Substitute $f(d) = (0.5 * 10^{-4})^d$

$g(f(d)) = -log_{10}((0.5 * 10^{-4})^d)$

Apply law of logarithm

$g(f(d)) = -dlog_{10}(0.5 * 10^{-4})$

Hence, the function is:

$g(f(d)) = -dlog_{10}(0.5 * 10^{-4})$

7 0

2 years ago

Read 2 more answers

Hello can I get some help

belka [17]

Yes that would be divide to get the meters

8 0

2 years ago

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What is the surface area of the triangular prism?

IrinaK [193]

Answer:

444m²

Step-by-step explanation:

6×10 + 24×6 + (24×10)

$(6 \times 10) + (24 \times 6) + 2 ( \frac{24 \times 10}{2} ) = 60 + 144 + 2(120) = 444 {m}^{2}$

3 0

2 years ago